caltech admissions essay prompt

California Institute of Technology | Caltech

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California Institute of Technology | Caltech’s 2023-24 Essay Prompts

Additional info short response.

Have you had any extenuating circumstances (such as limited course selection, inconsistent grades, or disruptions), that have affected your coursework, but that are not described elsewhere in your application? If so, tell us about them here.

STEM Awards Short Response

Some Caltech applicants engage in STEM competitions locally, nationally, or internationally (e.g., AIME, Science Olympiad, International Science Olympiads). If you have received any STEM honors or awards, list them here (with scores, if applicable).

Creativity Short Response

The creativity, inventiveness, and innovation of Caltech‘s students, faculty, and researchers have won Nobel Prizes and put rovers on Mars. But Techers also imagine smaller scale innovations every day, from new ways to design solar cells to how to 3D print dorm decor. How have you been a creator, inventor, or innovator in your own life?

Caltech Mission Short Response

Caltech‘s mission – to cultivate learning, discovery, and innovation for the benefit of humanity – relies on its community members embracing our Mission-Based Values, which include:

1. Openness and enthusiasm for having preconceptions challenged 2. Respect and appreciation for the idea that, while we are all members of the same community, the opportunities we‘ve had to develop, showcase, and apply our talents have not been equal 3. Passion for the ideal that science can and should meaningfully improve the lives of others

Share what one or more of these values evokes for you.

If there are aspects of your life or social or personal identity that you feel are not captured elsewhere in this application, please tell us about them below.

Interest/Hobby Short Response 1

When not surveying the stars, peering through microscopes, or running through marathons of coding, Caltech students pursue an eclectic array of interests that range from speed-cubing to participating in varsity athletics to reading romance novels. What is a favorite interest or hobby, and why does it bring you joy?

Interest/Hobby Short Response 2

Did you have a hard time narrowing it down to just one interest or hobby? We understand – Caltech students like to stay busy, too – tell us about another hobby or interest!

Why This Major Short Response

Please indicate your proposed area of interest at Caltech. If you have one, please indicate your second area of interest at Caltech. Why did you choose that area of interest?

Select-A-Prompt Short Response

At Caltech, we investigate some of the most challenging, fundamental problems in science, technology, engineering, and mathematics. Identify and describe two STEM-related experiences from your high school years, either in or out of the classroom, and tell us how and why they activated your curiosity. What about them made you want to learn more and explore further?

STEM experience/activity #1

STEM experience/activity #2

Common App Personal Essay

The essay demonstrates your ability to write clearly and concisely on a selected topic and helps you distinguish yourself in your own voice. What do you want the readers of your application to know about you apart from courses, grades, and test scores? Choose the option that best helps you answer that question and write an essay of no more than 650 words, using the prompt to inspire and structure your response. Remember: 650 words is your limit, not your goal. Use the full range if you need it, but don‘t feel obligated to do so.

Some students have a background, identity, interest, or talent that is so meaningful they believe their application would be incomplete without it. If this sounds like you, then please share your story.

The lessons we take from obstacles we encounter can be fundamental to later success. Recount a time when you faced a challenge, setback, or failure. How did it affect you, and what did you learn from the experience?

Reflect on a time when you questioned or challenged a belief or idea. What prompted your thinking? What was the outcome?

Reflect on something that someone has done for you that has made you happy or thankful in a surprising way. How has this gratitude affected or motivated you?

Discuss an accomplishment, event, or realization that sparked a period of personal growth and a new understanding of yourself or others.

Describe a topic, idea, or concept you find so engaging that it makes you lose all track of time. Why does it captivate you? What or who do you turn to when you want to learn more?

Share an essay on any topic of your choice. It can be one you‘ve already written, one that responds to a different prompt, or one of your own design.

What will first-time readers think of your college essay?

How to Write the Caltech Supplemental Essays 2024–2025

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California Institute of Technology , also known as Caltech, is a renowned university that focuses on providing a rigorous STEM education to its students. Caltech’s living alumni include 17 Nobel Laureates, such as Richard Feynman. Other notable Caltech alumni include Stephen Wolfram, Fei-Fei Li, Adam D’Angelo, and David Brin. If you’re an aspiring Techie, you’ve come to the right place. The Caltech supplemental essays include six required and four optional prompts for prospective applicants to answer. Let’s dive in.

Caltech’s 2024-2025 Prompts

Required caltech supplemental essays, your stem future – stem academic interests: caltech has a rigorous core curriculum and students don’t declare a major until the end of their first year. however, some students arrive knowing which academic fields and areas already most excite them, or which novel fields and areas they most want to explore. if you had to choose an area of interest or two today, what would you choose why did you choose your proposed area of interest if you selected ‘other’, what topics are you interested in pursuing (100-200 words), your stem present – stem curiosity: regardless of your stem interest listed above, take this opportunity to nerd out and talk to us about whatever stem rabbit hole you have found yourself falling into. be as specific or broad as you would like. (50-150 words), your stem past – stem experiences: tell us how you initially found your interest and passion for science or any stem topic, and how you have pursued or developed this interest or passion over time. (100-200 words), your stem past – stem experiences (continued): tell us about a stem-related experience from the last few years and share how and why it inspired your curiosity. (100-200 words), creativity in action question: the creativity, inventiveness, and innovation of caltech’s students, faculty, and researchers have won nobel prizes and put rovers on mars . but techers also imagine smaller-scale innovations every day, from new ways to design solar cells to how to 3d-print dorm decor to experimenting in the kitchen. how have you been a creator, inventor, or innovator in your own life (200-250 words), caltech values question: caltech’s values include respect for a diversity of thoughts and ideas. how have you cultivated this value in your own life (50-200 words), optional caltech supplemental essays, if there are aspects of your life or social or personal identity that you feel are not captured elsewhere in this application, please tell us about them below. (150 words or fewer), when not surveying the stars, peering through microscopes, or running through coding marathons, caltech students pursue an eclectic array of interests that range from speed-cubing, reading, yoga, playing musical instruments and theater arts, to solving puzzles, hiking, painting, and building or inventing new gadgets. we understand that everyone needs an outlet or two. what is a favorite interest or hobby, and why does it bring you joy (200 words or fewer), did you have a hard time narrowing it down to just one interest or hobby we understand – caltech students like to stay busy, too. tell us about another hobby or interest (150 words or fewer), have you had any extenuating circumstances (such as limited course selection or disruptions), that have affected your coursework, but that are not described elsewhere in your application if so, tell us about them here..

General Tips

While Caltech is unusual in offering ten essay prompts for applicants to answer, these essays don’t have to be difficult. Before you begin writing the first essay, read through all the prompts. That way, you can pace yourself. If a topic has multiple facets that could be discussed in different essays, versus getting jammed into one essay, then go for it. What might seem like an excessive number of essays to write is actually just an abundance of opportunities to show Caltech who you are.

Moreover, the optional essay prompts are really just that: optional. In order to be effective and boost your chances of admission, your Caltech supplemental essays need to be thoughtful, organized, proofread, and specific. If you only have the bandwidth to bring your best writing talents to the required prompts, you should feel no pressure to write a few more rushed essays. In addition, not all of the optional prompts will relate to all applicants. In other words, don’t try to write responses to the optional prompts if they don’t speak to you. Instead, consider all of the parts of yourself you’d really like Caltech to know, and do your best to incorporate them into the essays you are required to write.

That said, let’s dive in.

Required Caltech Short Essay Questions

Although you’re not bound to study whatever major or area of interest you describe in this essay, you should answer authentically. Through the Caltech supplemental essays, the admissions team seeks curious, driven individuals who already know they want to pursue STEM. Because of this, you’ll want to let your passion shine through.

In addition, whether you have a particular origin story behind your academic interest(s), or you simply enjoy pursuing the questions behind your interest(s), this essay response will benefit from specific details. For example, you hope to study computer science, explain to the reader what kind of computer science you’re interested in, how you became interested in this subfield, and, if you have space, what you hope to do with this degree. Don’t be afraid to sound nerdy!

If there were any details or interests you couldn’t fit into the answer above, here’s your opportunity to explore them further. Note that the wording of the prompt indicates that you should only discuss one rabbit hole in this essay. Instead of discussing all your interests in one place, focus on one topic you’ve regularly been Googling, reading about, watching YouTube videos on, or otherwise researching. Remember, there are quite a few Caltech essays. Therefore, you should aim for depth instead of breadth in this essay. Any topics you wish you could have addressed here, you’ll likely have the opportunity to address in another essay.

This essay prompt has some overlap with the first prompt, which could also involve the origin story of a STEM interest of yours. That said, this prompt could be about any STEM interest, not just your intended area of study. In addition, you could focus this essay on a more specific interest, topic, or subfield than your area of study. In fact, you could focus on a singular, specific topic that is included within your area of study. You could even get as specific as a single question you’ve sought to answer over the years.

If you’re having trouble coming up with topics for this essay, consider focusing on whatever interest has the best story behind it. Note that the prompt expects a singular topic , not multiple topics. This prompt expects you to provide the past, present, and future of a particular interest. Therefore, if you have been pursuing any particular topic for a while, then that topic might fit well into this essay.

This prompt, which is under the same subheading as the previous prompt (”Your STEM Past – STEM Experiences), opens the door for you to discuss extracurricular activities or coursework. For instance, you could describe a lab project in school that inspired your interest in biology. You could focus on an independent research project you have pursued, a summer camp you have attended, a lecture you have heard, or even a book you have read.

The prompt asks you to discuss an “experience,” so be sure to keep your narrative concrete, not abstract. Your essay should clarify that the topic of your essay involved a real-life experience. Then, you should explore how that experience has impacted you and your interest(s).

This essay is your space to describe a project you’ve undertaken, a way you’ve optimized your daily life, a practical idea you’ve come up, or something along these lines. The more creative, the better. Consider the times when you’ve worked with your hands, solved practical problems for your family or friends, or used your technical skills to create something new and unexpected.

The admissions team set this prompt in order to gauge their applicants’ level of creativity and drive to be industriousness in their daily lives. Creativity is great to demonstrate here, but you can also highlight the ways you’ve served others. Not only will you be a student at Caltech, but you will be a peer, a roommate, a community member, and a friend. Therefore, if you have created, invented, or innovated on behalf of others, then you might want to focus on one of those projects here.

Following on the last prompt, Caltech seeks students who will also be thoughtful community members, peers, and friends. Most likely, Caltech’s community will be more diverse than your hometown, given that your classmates will be from around the world. Therefore, the admissions team looks for students who will thrive in communities of great diversity. This diversity not only encompasses identity but also perspectives and life experiences.

Consider times when you have exercised humility, worked to build community, and/or engaged with people who have very different worldviews from your own. Describe who you were in those moments, and feel free to bring up multiple moments as long as you have room to describe each one with specificity.

Optional Caltech Short Essay Questions

Like all of the optional Caltech supplemental essays, this prompt provides applicants with the opportunity to discuss topics otherwise unmentioned in their applications. For instance, if your Caltech application explores your academic and extracurricular interests and achievements but ignores your cultural identity, you might want to write about that topic in this essay. In other words, if there are parts of who you are and how you present yourself to the world that aren’t addressed elsewhere in your application but feel important to you to mention, here’s your chance.

The word “identity” can be treated expansively here. Your identity can include your gender, ethnicity, immigration status, sexual orientation, Myers-Briggs type, political party, religion, and more. Remember, the admissions team has posed this prompt in order to get to know you better. If you were meeting someone for the first time, what would you hope they understood about you? This essay is the right place to answer that question.

The key word in this prompt is “joy.” While brainstorming for this prompt, think about the ways you spend your time. When are you most joyful? What excites you? What do you look forward to doing in your spare time? Here’s your opportunity to elaborate on a source of joy for you.

A “favorite interest or hobby,” in the context of this prompt, should be something that you do simply because you like to. In other words, this activity should not be solely driven by your desire to pad your resume, earn money, or please your parents. This activity should be self-driven and self-motivated.

In addition, this should be a singular activity (see the next prompt). Because most people can write at lengths about their passions, it is important to keep this essay focused on one topic, with a clear beginning, middle, and end. Before you begin to write, consider structuring your essay around an anecdote. You could also write this essay about how your interest/activity/hobby has changed you as a person, a structure which would give your essay a clear narrative arc. However you choose to organize your thoughts in this essay, pay attention to the narrative structure, make sure every sentence relates back to your overarching topic, and be sure to let your joy shine through.

If you found yourself struggling to decide on which hobby or interest to write about while brainstorming the last essay, consider giving one of the runner-ups a chance to shine in this essay. Note that you should only choose to respond to this prompt if you have already responded to the last prompt.

Like in the previous essay, cohesion is essential to making this essay stand out. Don’t mention all your other interests here; the prompt is clear that you’re only supposed to bring up one more interest in this essay. And, once again, joy is key to making this essay feel authentic. Feel comfortable discussing an interest that is similar to the one you already wrote about, or write about a completely different type of hobby if that feels more right to you. Regardless, focus on an activity you pursue that genuinely makes you happy, and your essay will read just as genuinely

This essay prompt gives an applicant the opportunity to bring up a topic otherwise untouched in their application. If your GPA was affected by factors outside your control, your AP exams disturbed or unexpectedly canceled, or another similar issue, then you don’t have to be burdened by that situation in your college application process. Instead, you can elaborate on your unique circumstances here, in an essay with no official word limit.

Be as specific, humble, and honest as you can be here. Moreover, don’t write more than you need to. Although there’s no official word limit on this essay, the admissions officers at Caltech are busy individuals. As briefly as you can, provide the details of your extenuating circumstances, but don’t provide more information than necessary.

If you need help polishing up your Caltech supplemental essays, check out our College Essay Review service. You can receive detailed feedback from Ivy League consultants in as little as 24 hours.

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August 6, 2024

Caltech Supplemental Essay Prompts: 2024-2025

The California Institute of Technology has released its supplemental essay prompts for the 2024-2025 admissions cycle. The school, one of the last among America’s elite universities to release their essays for applicants to the Class of 2029 , asks applicants to respond to several required and optional essays as well as short answers. These essays are, of course, in addition to The Common Application ’s Personal Statement. So, what are this year’s Caltech essays and how should they be approached? Let’s dive in!

2024-2025 California Institute of Technology Essay Topics and Questions

Required essay prompts, your stem future: academic interests.

Because of the rigorous courses in the core curriculum , Caltech students don’t declare a major until the end of their first year. However, some students arrive knowing which academic fields and areas already most excite them, or which novel fields and areas they most want to explore.

If you had to choose an area of interest or two today, what would you choose? Why did you choose your proposed area of interest? If you selected ‘other’, what topics are you interested in pursuing? (Max: 200 words)

This essay prompt is a straight-up-the-middle Why Major essay. Caltech’s admissions committee wants to understand the origin story of an applicant’s interest in the discipline they wish to study at Caltech. Yet, students should be sure to set that origin story during their high school years. Too often, students share stories about how they developed their academic interests as children. Admissions officers want to hear how students think now — not then.

Your STEM Present: Academic Curiosity

1. Regardless of your STEM interest listed above, take this opportunity to nerd out and talk to us about whatever STEM rabbit hole you have found yourself falling into. Be as specific or broad as you would like. (Max: 150 words)

Caltech’s admissions committee wants to discern if an applicant’s brain is overflowing with interests in STEM-related fields. This prompt is an opportunity for an applicant to show rather than tell that their cup runneth over!

Your STEM Past: Prior Experiences

At Caltech, we investigate some of the most challenging, fundamental problems in science, technology, engineering, and mathematics. We are interested in learning more about your engagement with STEM.  Please share two STEM-related experiences:

1. Tell us how you initially found your interest and passion for science or any STEM topic and how you have pursued or developed this interest or passion. (Max: 200 words)

Here’s an opportunity for an applicant to share another origin story about their interest in STEM-related fields. Of course, students would be wise to set their origin story during their early high school years rather than as children. There can be many reasons applicants realized they had a passion for STEM!

2. Tell us about a STEM-related experience from the last few years and share how and why it inspired your curiosity. (Max: 200 words)

An activity essay in a STEM-related area would work well for this prompt to showcase one of many ways an applicant has demonstrated their passion for the field.

Creativity in Action

1. The creativity, inventiveness, and innovation of Caltech’s students, faculty, and researchers have won  Nobel Prizes  and put  rovers on Mars . But Techers also imagine smaller-scale innovations every day, from new ways to design solar cells to how to 3D-print dorm decor to experimenting in the kitchen. How have you been a creator, inventor, or innovator in your own life? (Max: 250 words)

This essay is another excellent opportunity for students to share one small story about how they’ve developed something in the STEM field. And the example does not need to stem from award-winning research. It doesn’t need to be anything formal.

A great example would be seeing a problem on a bike ride to school and figuring out how to fix it. Maybe a student’s bike went over a pothole, so they designed a way to light up a grid on the road to identify when potholes were forthcoming. Caltech’s admissions committee wants to see how applicants think and how they’re creators and inventors even in life’s small moments.

Caltech’s Values

1. Caltech’s values  include respect for a diversity of thoughts and ideas. How have you cultivated this value in your own life? (Max: 200 words)

We should hope so! This is an opportunity for Caltech applicants to show they’re human and will respect their peers, regardless of their backgrounds. It would be best to do so through an anecdote so the applicant shows rather than tells. After all, saying you appreciate diverse perspectives isn’t exactly convincing!

Optional Short Answer Questions

1. If there are aspects of your life or social or personal identity that you feel are not captured elsewhere in this application, please tell us about them below.  (Max: 150 words)

While the United States Supreme Court outlawed Affirmative Action , Chief Justice John Roberts penned a loophole in the majority opinion. As he wrote, “Nothing in this opinion should be construed as prohibiting universities from considering an applicant’s discussion of how race affected his or her life, be it through discrimination, inspiration, or otherwise.”

This essay allows students to capitalize on this loophole by sharing their stories. And students do not need to be underrepresented minorities to have a story to tell here. Applicants could focus on their faith, community, sexual orientation, or gender identity — the possibilities are endless.

2. When not surveying the stars, peering through microscopes, or running through coding marathons, Caltech students pursue an eclectic array of interests that range from speed-cubing, reading, yoga, playing musical instruments and theater arts, to solving puzzles, hiking, painting, and building or inventing new gadgets. We understand that everyone needs an outlet or two. What is a favorite interest or hobby, and why does it bring you joy? (Max: 100 words)

While having a passion for the STEM fields is a prerequisite for Caltech, the admissions committee wants to know that you have interests beyond these disciplines. So here’s an excellent opportunity for applicants to showcase their love for poetry, history, foreign language, anthropology, or any other field. As long as applicants showcase their intellectual curiosity through their storytelling — ideally in an area outside of STEM — they’re on the right track.

3. Did you have a hard time narrowing it down to just one interest or hobby? We understand – Caltech students like to stay busy, too – tell us about another hobby or interest!  (Max: 150 words)

We encourage students to write about a hobby that highlights their intellectual curiosity. So many options would work here. It doesn’t need to be a hobby in which a student changes the world. Yet, it should showcase their intellectual curiosity. If they love tie-dying t-shirts, they should focus on the mathematics of creating extraordinary patterns.

Ivy Coach’s Assistance with Caltech Essays

If you’re interested in optimizing your case for admission to Caltech by submitting essays that will wow Caltech admissions officers, fill out Ivy Coach ’s complimentary consultation form , and we’ll be in touch to outline our college counseling services for seniors.

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How to Write Amazing Caltech Essays

College Essays

The California Institute of Technology—or Caltech, as it's more commonly known—is a highly exclusive college. If you want to join the Beavers, you'll need not just top grades and standardized test scores, but strong writing supplements to support them as well.

Caltech accepts around 6% of students who apply, making it an extremely competitive school . The more you know about the Caltech essay prompts before you start, the better prepared you are to answer them.

Read on to learn about 2021's essay prompts, as well as some tips and tricks for maximizing their potential to impress!

Feature Image: Canon.vs.nikon /Wikimedia Commons

BREAKING: Caltech Application Changes Due to COVID-19

As a result of the novel coronavirus pandemic, many colleges have made the decision to at least temporarily stop requiring SAT and ACT scores. In June 2020, California Institute of Technology announced that they will stop considering SAT and ACT scores of applicants for the next two admission cycles (those applying in fall 2020, 2021, and 2022). This means that, not only are SAT and ACT scores not required, but, even if you submit them, they won't be reviewed and they won't be considered as part of your application. (This is what we refer to as a "test blind" policy.) Additionally, international students can now meet Caltech's English proficiency requirement by submitting either TOEFL or Duolingo scores.

Because of SAT and ACT cancellations , as well as the difficulty some students are having preparing or paying for the tests, Caltech made the decision to temporarily stop requiring standardized test scores to make admissions as fair and equitable as possible. Because test scores aren't being considered, there will be an increased emphasis on classes students took and the grades they received in them.

What Do I Need to Know About the Caltech Essays?

Caltech accepts four different applications: Coalition, Common App, Powered by Scoir, and Questbridge. In addition to the required Coalition,  Common Application, and powered by Scoir essays, Caltech also requires three short essays. ( Questbridge applicants only need to write these if they become Match Finalists and have ranked Caltech.)

You’ll write one required academic question and three required short answer questions, but you’ll also have the option to answer three supplemental short answer questions and one supplemental academic question, if you want.

Altogether, you'll be writing up to 1100 words for the required essays, and 300 words for the optional short answer questions. These essays are fairly short, so you'll want to spend a good amount of time honing your argument to its most efficient. Start early so you have plenty of time to plan, refine, revise, and proof before you submit!

Do a little preparation and you can look this happy when writing your Caltech essays, too!

What Are the Caltech Essay Prompts?

The Caltech essay prompts are fairly standard, though each one is tailored to the college's specifications. You'll see the usual "Overcoming Obstacles” and “Defining Your Fit” essay questions, but always keep in mind that you're applying to Caltech specifically, and your essays should reflect that.

Required Academic Question

Because of the rigorous core course curriculum, Caltech students don't declare a major until the end of their first year. However, some students arrive knowing which academic fields and areas already most excite them, or which novel fields and areas they most want to explore. If you had to choose an area of interest or two today, what would you choose? Why did you choose that area of interest? (Max: 200 words)

The first essay asks you share your academic passion (or passions), and how you discovered them. Many colleges understand that students change their majors throughout the course of their careers, and Caltech doesn’t want you to have to choose a major until you’re a sophomore. But they still want you to have a good idea of what you want to focus on and why it matters to you.

The key here is to be specific about your area of interest. Note that they don’t mention a major, but instead an overall field. In other words, now isn’t the time to say that you want to major in biology because you’ve always done well in school. Instead, focus on something more specific, like a problem you want to solve or an experience that changed the way you see your career. Maybe your physical science egg-drop challenge inspired a desire to create safer structures, or maybe a field trip to a NASA location made you realize you had to be in that control room one day.

Whatever the case, be as specific as you can with what you want to study, and remember that multiple majors could get you there. For example, visiting NASA could have inspired you to study mathematics, physics, or engineering. There are multiple paths to reach the same goal; do your homework, look at the different programs Caltech offers, and choose one or two that align with your dream.

Caltech is, in their own words, “an unapologetic STEM institution.” Whatever you do, make sure that your chosen area fits within these parameters.

Required Short Answer Question #1

At Caltech, we investigate some of the most challenging, fundamental problems in science, technology, engineering, and mathematics. Identify and describe two STEM-related experiences from your high school years, either in or out of the classroom, and tell us how and why they activated your curiosity. What about them made you want to learn more and explore further? (Min: 100/Max: 200 words for each experience)

This prompt is asking you to discuss something you're passionate about. Your interests and activities outside of school and work can reveal a lot about the kind of person you are. As such, this prompt is a great opportunity to show how you exhibit the characteristics of the perfect Caltech candidate in your life experiences that don’t show up in your test scores and GPA.

Hopefully, thinking of a topic for this essay will be easy for you. You should write about a situation, story, or topic that gets you so engrossed and excited that it’s tough to tear yourself away from learning about it! Whether that’s reading up on the psychology of conspiracy theories or bird watching with your little brother, the most important thing is that you choose something that you’re deeply interested in. When you do that, admissions counselors will be able to feel your passion too!

Even though you probably could write pages and pages about the topic you choose, it’s important to keep things clear and concise here. Remember: you only have 200 words per topic to work with! To keep your essay focused, tell the story of how these experiences piqued your curiosity into the subject (or subjects) you’ve chosen to write about. You can describe your learning process, even if it’s quirky or unconventional. This is your chance to show Caltech how you choose to expand your mind when left to your own devices.

And that’s the most important thing to emphasize in your essay. Caltech is looking for students who don’t stop learning when the semester ends. The people who make a difference in the world are passionate, lifelong learners. This essay is your chance to show off your niche interests and prove to Caltech that you’re a lifelong learner too.

This guy would fit right in at Caltech.

Required Short Answer Question #2

The creativity, inventiveness, and innovation of Caltech's students, faculty, and researchers have won Nobel Prizes and put rovers on Mars , but Techers also imagine smaller scale innovations every day, from new ways to design solar cells to 3D printing dorm decor. How have you been an innovator in your own life? (Min: 200 / Max: 250)

This question is a great way for you to show off your skills! Maybe your insight helped your school’s robotics team take home first place, or maybe you found a way to streamline some part of your family’s day-to-day routine. You have a lot of options here, but make sure to keep your topic focused on STEM-related subjects. This is an excellent topic for a problem-and-solution essay: after all, your innovation will have improved a situation, right? You only have 250 words, so you’ll need to make them count! Caltech wants to see how your mind works : why were you driven to your chosen innovation? Were there any obstacles? What was the end result, and how was it received?

Remember:  you'll need to give the admissions counselors enough information that they can understand your innovation and  its impact. Be sure to answer both parts of this question so that you're fully addressing the prompt. 

It probably wasn't one of these kids who wrote these successful Caltech essays.

Required Short Answer Question #3

The process of discovery is best advanced when people from diverse backgrounds come together to solve the greatest challenges in their fields. How do your past experiences and present-day perspectives inform who you have become and how you navigate the world? (Min: 200 / Max: 250)

This is your chance to show Caltech what makes you tick, and how you’ve become who you are. Think back on the formative experiences in your life: your home, your family, your cultural background. How have they shaped you into who you are now and what you want? Show Caltech how you see the world, and why.

As always, you should remember to gear this toward STEM as much as you can: Caltech isn’t kidding when they tell you to “lean all the way in on the STEMiest of STEMmy topics.” The trick here is to show how your own lived experiences have informed your interest and perspective on the STEM subject that you’re most drawn to. Maybe you come from a family of artists, and their sense of aesthetics informs the way you design and present your projects. Maybe you have a different cultural background than most of your peers, which influences your thought processes.

Be sure to tell a story here so that you can connect with admissions counselors. For example, was there a formative experience in your childhood or youth that made you realize you stand out from your peers in some way? Was a family member or cultural tradition particularly influential?

CalTech Short Answer Questions

Along with longer essays, you'll also have to tackle a few short answer responses, too. We'll break them down below! 

Supplemental Short Answer Question #1

If there are aspects of your identity that you feel are not captured elsewhere in this application, please provide that information below. (Max: 150 words)

This is a pretty broad prompt! Unlike Required Question 3, which asks about your background, or Supplemental Question 2, which asks about your hobbies, this is about your identity, which includes both of those things and more! You have a lot of options here: think of past experiences that made you realize more about who you are and what you stand for. Maybe you stood up to a bully. Maybe you went stargazing with family or friends, and found yourself overwhelmed by the vastness of the universe. Just like with the other prompts, remember to be as specific as possible, and give examples.

Supplemental Short Answer Question #2

When not surveying the stars, peering through microscopes, or running through marathons of coding, Caltech students pursue an eclectic array of interests that range from speed-cubing to participating in varsity athletics to reading romance novels. What is a favorite interest or hobby and why does it bring you joy? (Max: 100 words)

This is a great prompt to answer, because it gives you the chance to show the admissions counselors more about who you are not just as a budding scholar but as a person. Here’s a chance to open up about, say, your passion for rock climbing or your increasingly-large collection of succulents. You only have 100 words, but try to go into as much detail as possible about how your hobby makes you feel. This is the place to be descriptive, and to show rather than tell.

Supplemental Short Answer Question #3

Did you have a hard time narrowing it down to just one interest or hobby? We understand – Caltech students like to stay busy, too – tell us about another hobby or interest! (Max: 50 words)

You've probably got more than one hobby you love. This is your chance to share that with admissions counselors at CalTech. You don't have much space, but help your readers understand why you're passionate about the hobby you choose. 

Caltech Essays That Worked

All this information is great, but it can still be tricky to understand exactly what Caltech wants to know until you've seen it demonstrated. Check out this accepted essay—and some tips from someone who took a serious risk—to learn more about what Caltech hopes to see in your essay!

Even though the example essays below respond to old essay prompts, there’s still a lot you can learn from them about how to write successful Caltech essays.

Martin Alternburg's Essay

I cross over the bridge into Minnesota. Out of my three sports, cross country is definitely my worst — but I continue to be hooked on it. Unlike swimming and track, my motivation to run is heavily intrinsic. I live for the long runs I take on by myself. While they rarely happen during our season, we were assigned a long run to complete over our first weekend of cross country. In reality, I was supposed to go six miles, but felt eight gave me more time to explore the home I had just returned to. My mind begins to wander as I once again find my rhythm. My train of thought while running is similar to the way one thinks in the minutes before sleep — except one has more control over how these thoughts progress and what tangents they move off of. While special relativity would be the "proper" thing to think about, especially at MITES, I revive the violin repertoire I had turned away from for so long and begin playing it in my head. I'm now at the edge of town in between the cornfields. The streaming floodlights on the open road give me a sense of lonely curiosity, reminiscent of the opening lines of Wieniawski's first violin concerto. I come up with adaptations of the melody in my head, experimenting with an atonality similar to Stravinsky's.

Martin Altenburg's essay is well-structured, using the narrative of a morning run to demonstrate all the things that run through his head, and, more importantly, all the unique traits that make him who he is.

From just these two paragraphs, we know he's a runner, that he's driven, that he strives for more than he thinks he's capable of, and that he knows music and composition. Because the essay is in a narrative format, we're able to follow this line of thinking and have it all wrapped up neatly at the end. We're drawn in by energetic and purposeful writing that also delivers us all the information we need.

Throughout the essay, Altenburg discusses his interests and his growth. His strategic use of locations in his hometown allows readers to understand where he comes from both literally and figuratively, especially the part about his beliefs and how the community he's grown up in have impacted them. All this is valuable information to an admissions office, who wants to see how you see yourself and why.

One thing to note about this essay is that it doesn't include any reference to Caltech. In fact, Altenburg used the same essay to apply to—and get into—eight different Ivy Leagues as well as some other schools. The essay was likely written as part of the Common or Coalition Application rather than as part of Altenburg's Caltech supplement, hence the lack of specificity. Your essays for the Caltech supplement should contain more specificity than this, as these essays are unique to Caltech and want to know exactly what draws you to that school above others.

Michelle Fan's Essay Reflection

"How do you believe Caltech will best fuel your intellectual curiosity and help you meet your goals?" If I had a few weeks, I might have done enough research to namedrop a few professors, rave about the strength of their computer science programs, and come up with a compelling story about all my professional goals. But I didn't have those few weeks, so I told them the unembellished, wholehearted truth: I said I have no idea what I want to do in life. All I knew was that I liked making calculator games and explosions and wanted to participate in the bread-throwing, water-dumping congregations otherwise known as Caltech house dinners. As it turns out, being yourself actually works. Shocker, I know. Colleges really do want to like you for you.

Michelle Fan doesn't post her Caltech essay directly, but she does talk about her process and what she discovered between her highly planned essays and the ones she wrote the day they were due.

Fan points out that her last-minute essays, the ones that she wrote from her heart rather than from her head, are the ones that got accepted. Though I definitely don't advocate for waiting until the same day that your essay is due to start writing it, it's a good message to keep in mind—when you're faced with an imminent deadline and you just need to get something out, your writing is probably more genuine than if you've been editing and revising it for ages.

But the big takeaway here should not be to wait until the last second to write your essay (please, don't do that!). The real lesson is that you should write in a way that is true to yourself, not a way that you think will impress admissions offices. You should be authentic and genuine, letting your personality and interests tell Caltech why you're a good fit.

If your essay looks like this, that's a good thing!

4 Key Tips for Writing a Caltech Essay

Like all college essays, there are some general things to keep in mind when working on your Caltech writing supplement. The earlier you get started, the better—take a little time to make sure that your essay is as polished as possible!

Brainstorming before you start writing will help you pick a topic that's both meaningful and impressive. Jotting down a list of ideas for each topic, no matter how silly they might feel at first impression, gives you options. Spend a little time away from your options so that you can pick the one that you feel most strongly about with less bias!

#2: Get People to Read Your Essays for You

Feedback is an important tool as a writer. Getting someone else to look at your work—preferably someone who will be honest about its shortcomings—will help you find logical holes, weird phrasing, and other errors that may creep into your work. When you feel like your essays are as polished as you can make them is a good time to hand them off to someone else. Remember, you don't have to make every change they suggest exactly as they suggest it, but if your reader is confused about something, see what you can do to make it clearer!

#3: Edit and Revise

Take that feedback you got from your reader and turn it into gold. Again, don't feel like their suggestions are always the right move, but do consider what's causing their confusion or dislike for parts of your essays. Fix them in your own voice, and re-read your essay, especially out loud, to catch any additional errors. The more time you can spend revising, the better!

#4: Be Authentic

Always remember that you're not just trying to impress Caltech with a bunch of statistics—you're trying to impress them as you. That means always staying true to yourself and striving for authenticity. Give Caltech an essay that showcases what it means to be you, not an essay that gives them what you think that they want to hear.

What's Next?

Need an even more in-depth guide to how to write a college essay ? Those tips will help you write a stellar essay from start to finish!

A strong essay is just one part of a successful Caltech application. Also look into Caltech's SAT scores and GPA requirements so you can draft an effective academic plan!

Before you send in your Caltech application, it's a smart idea to figure out how much money it's going to cost you to attend. How do Caltech's financial aid offerings measure up to tuition costs?

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Melissa Brinks graduated from the University of Washington in 2014 with a Bachelor's in English with a creative writing emphasis. She has spent several years tutoring K-12 students in many subjects, including in SAT prep, to help them prepare for their college education.

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How to Ace the 23/24 Caltech Supplemental Essays

Varonika Ware is a content writer at Scholarships360. Varonika earned her undergraduate degree in Mass Communications at Louisiana State University. During her time at LSU, she worked with the Center of Academic Success to create the weekly Success Sunday newsletter. Varonika also interned at the Louisiana Department of Insurance in the Public Affairs office with some of her graphics appearing in local news articles.

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Bill Jack has over a decade of experience in college admissions and financial aid. Since 2008, he has worked at Colby College, Wesleyan University, University of Maine at Farmington, and Bates College.

Maria Geiger is Director of Content at Scholarships360. She is a former online educational technology instructor and adjunct writing instructor. In addition to education reform, Maria’s interests include viewpoint diversity, blended/flipped learning, digital communication, and integrating media/web tools into the curriculum to better facilitate student engagement. Maria earned both a B.A. and an M.A. in English Literature from Monmouth University, an M. Ed. in Education from Monmouth University, and a Virtual Online Teaching Certificate (VOLT) from the University of Pennsylvania.

Deciding to go to the California Institute of Technology is the dawn of a new academic adventure! Caltech is a highly selective private research university with a 4% acceptance rate . With such a competitive application pool, your very best writing is required. In this guide, we’ll go over each prompt and help you break the Caltech essays down so you’ll know exactly what is being asked. Let’s get started!

The Caltech essays

Caltech’s supplemental essay prompts are a way for you to show the admission’s readers exactly who you are and why you should be part of the next undergraduate class. Even responding to the optional prompts (Essays #5 through #9 are optional) shows Caltech that you want to be there and are willing to go the extra mile to prove that. Remember, applicants should emphasize STEM in their essays as much as possible since that’s one of the primary focuses of Caltech. 

Keep reading below to learn more about Caltech supplemental essay prompts!

“If you had to choose an area of interest or two today, what would you choose? Why did you choose that area of interest? (Max: 200 words)”

Applicants should see this prompt as an opportunity to discuss their passions in STEM or any other Caltech program. However, it’s important to discuss more than just what  your desired major is; be sure to talk about how Caltech plays a part in whatever interests are shared. What’s so unique about this major/interest that you can’t stop thinking about it? Is it daring? Are you the only one in your family to do it? Use this essay to show your drive and initiative. 

Questions to consider:

• Why do you want to study your major at Caltech?
• What is something unique about the majors that Caltech offers?
• What do you imagine when you think of studying your major at Caltech?

“At Caltech, we investigate some of the most challenging, fundamental problems in science, technology, engineering, and mathematics. Identify and describe two STEM-related experiences from your high school years, either in or out of the classroom, and tell us how and why they activated your curiosity. What about them made you want to learn more and explore further? (Min: 100 / Max: 200 words for each experience)”

Caltech is clear in this prompt that the focus is on science, technology, engineering, and mathematics (STEM). While your experiences might seem similar to other applicants, try to set yourself apart by incorporating a personal aspect to your essay. Explain to the reader where your love of STEM started or grew during your time in high school and how that might contribute to your desire to attend Caltech. 

Applicants should also explain what they want to learn more about or explore further and why. Doing so further demonstrates your interest in Caltech if you’re able to make a connection between what you’re curious about and what you love about this specific university. 

• Who motivated you to get involved in STEM? Was it a mentor or a family member?
• What about this experience made you want to pursue STEM at Caltech?
• What are you most curious or excited about in STEM?

“The creativity, inventiveness, and innovation of Caltech’s students, faculty, and researchers have won Nobel Prizes and put rovers on Mars, but Techers also imagine smaller scale innovations every day, from new ways to design solar cells to 3D printing dorm decor. How have you been an innovator in your own life? (Min: 200 / Max: 250)”

The definition of innovation is the introduction of something that’s never existed before. Remember, innovation doesn’t have to be some large, spectacular creation. Your innovation can be something new you’ve added to your life or doing something that you’ve never heard of. Even being the first person in your family to go to college could be a form of innovation–you just have to get creative! 

• Are you the first person to do something in your family?
• Have you created something that you think is fresh or different?
• Do you consider yourself a trailblazer? Why?

“The process of discovery is best advanced when people from diverse backgrounds come together to solve the greatest challenges in their fields. How do your past experiences and present-day perspectives inform who you have become and how you navigate the world? (Min: 200 / Max: 250)”

Use this prompt to consider how your background and/or cultural experiences have shaped your life. Have you had a chance to experience other cultures and learn from them? Has your background empowered you to further pursue STEM? These are questions you should think about as you write your Caltech supplemental essay.

The world has advanced from a collection of ideas from various different sources, so it would be good to share how a collaborative effort from people different from yourself has allowed you to grow and learn new things. Try to show your open-minded side as well as your intelligent one.

• What opinions have you formed about the world as a result of your experiences?
• How does your background influence who you are today and who you hope to become?
• What is the difference between how you navigate the world and how other applicants might?

“ Optional: If there are aspects of your identity that you feel are not captured elsewhere in this application, please provide that information below. (Max: 150 words)”

This prompt should take the Caltech admissions office on an exploration of the unknown, aka you. You could approach this essay in a unique way and push conventional boundaries. Alternatively, you could take a straightforward approach that positions you as an ideal candidate. Either way, the goal is to differentiate yourself from all other applicants, especially since this is one of the first optional essays that Caltech offers. 

• Why do you want to share this with the admissions office?
• How will this aspect of your identity make your application stand out?
• What should be the key takeaway from this optional essay?

Also see: How to write an essay about yourself

“ Optional: When not surveying the stars, peering through microscopes, or running through marathons of coding, Caltech students pursue an eclectic array of interests that range from speed-cubing to participating in varsity athletics to reading romance novels. What is a favorite interest or hobby and why does it bring you joy? (Max: 100 words)”

As an optional prompt, it may be tempting to skip over this essay. However, completing it can make your application more interesting while showing that you’re willing to go the extra mile to attend Caltech. Telling the admissions office about a unique interest or hobby reveals a lot about your personality and whether you fit in at the university. You could be especially interested in plants and bugs, which might show that your love of science goes deeper than just in the classroom. The same can be true for any other activity that you find joy in. 

The word count for this prompt is relatively short, but don’t over-generalize your interests. Just saying a particular aspect of STEM isn’t going to cut it, so try to dig a little deeper to highlight something different and new to your application. 

• What is an activity that you haven’t mentioned anywhere else in your application?
• What does this interest or hobby say about you and your personality?
• Why do you enjoy this experience? 

“ Optional: Did you have a hard time narrowing it down to just one interest or hobby? We understand – Caltech students like to stay busy, too – tell us about another hobby or interest! (Max: 50 words)” 

This prompt is for applicants that have multiple unique hobbies or interests. If you completed the initial prompt mentioned above, then don’t feel pressured to write about another hobby if you can’t think of one right away. However, you’ll have to simplify this interest a lot more than the first, so be sure to pick the most important one for the longer prompt.

• Why do you want to write about this additional hobby?
• Does this interest build on your first one and the rest of your application?

“ Optional: Have you had any extenuating circumstances regarding your coursework (such as limited course selection or disruptions) not described elsewhere in your application? If so, tell us about them here.”

Everyone doesn’t have the same journey when it comes to pursuing education. Sometimes, we hit bumps in the road, and Caltech offers this prompt for you to explain your story. Applicants don’t have to share every detail of their circumstances, but disclose enough that Caltech can understand what the conditions at the time were and how they affected you. Don’t be afraid to be vulnerable and transparent since doing so shows that you’re taking your application seriously. It can also prove your tenacity and determination if you include how you overcame this difficulty in your life and how you’ll continue to progress.

• Is there anything that you feel you need to explain about your grades or courses?
• Was there anything notable and impactful that affected your school performance?
• How have you grown or what did you learn from this experience?

“ Optional: Some Caltech applicants engage in STEM competitions locally, nationally, and internationally (such as AIME, Science Olympiad, International Science Olympiads.) If you have received any STEM honors or awards, list them here (and scores, if applicable).” 

Use this prompt as your opportunity to share your STEM accomplishments with Caltech. Don’t be afraid to include all the awards that you’re proud of! Let your accomplishments speak for themselves, and try not to exaggerate. 

There also isn’t a word limit, which can tempt you to go on and on for page after page. So, show Caltech that you still have tricks up your sleeve by giving them a small piece of what’s next. This means knowing when to bring an end to your essay, even if you haven’t listed every award.

• What are some of the awards I’ve won throughout high school?
• Why do I want Caltech to know about this specific award?
• How does this award relate to attending Caltech?

Final thoughts for applicants

As you wrap up your Caltech essays, it’s important to keep a couple of things in mind. One of the most important things is noticing word count for each prompt. A majority of the prompts are 100-200 words with only a few exceptions. This means it’s ideal to get to the main point of your essay as soon as possible. 

Potential Caltech students should also take time to read through each essay submission to check for errors or any weird issues with the flow and readability of your essays. It can be helpful to ask your teachers, peers, or family members to read over your submission and get feedback to improve on your writing and storytelling skills. The world wasn’t built in a day, so don’t overwhelm yourself! There are resources here to help.

Additional resources

Since you’re considering pursuing higher education, it’s important to have all the resources you can get at your fingertips. Check out some of these Scholarships360 links to learn more!

• Learn how extracurriculars impact your application
• Find out about fully funding your education with scholarships
• Decide on when to submit your application to college

Remember to apply for all the scholarships you qualify for while you are eligible! 

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The Ultimate Guide to Applying to the California Institute of Technology

Known for its incredibly strong science and engineering programs, the California Institute of Technology is recognized worldwide as one of the top universities in the nation. Caltech boasts prestigious academic programs, renowned faculty, and a strong emphasis on research. Every year, these qualities, among others, draw thousands of applicants to the school.

Located in Pasadena, California, Caltech provides students with strong academic offerings and incredible research opportunities. Caltech prides itself on its emphasis on undergraduate teaching, and has one of the lowest student-to-faculty ratios in the country. Approximately 300 faculty members teach 1,000 undergraduate and 1,250 graduate students. The Caltech faculty members are leaders in their fields, and among them are 34 Nobel Prize winners.

Are you interested in applying to Caltech? In this post, we’ll walk you through the Caltech application and provide you with the tips, tricks, and insights you need to make your application to Caltech stand out.

Average Stats of Accepted Caltech Students

Caltech is a highly selective school when it comes to admissions. In the 2019-2020 admissions cycle, Caltech received over 8,300 applications. It accepted approximately 6% of those applications, and 236 students ultimately enrolled. 22% of enrolled students came from underrepresented ethnic backgrounds and 10% were international students. 

When it comes to the SAT, the middle 50% range for Caltech is 1530-1570. The middle 50% for ACT scores is 35-36. In the past, the school required students to take subject tests in math and science, but will not have this policy going forward. In fact, the application will be completely test-blind – for the 2020-2021 and 2021-2022 application cycles, the school’s admissions committee will neither require nor consider SAT and ACT test scores.

Caltech doesn’t release GPA averages, but 99% of the members of the Caltech Class of 2019 graduated in the top tenth of their class, and all graduated in the top quarter of their class. If you don’t know your GPA, you can find it using our free GPA calculator .

Because the school is so selective, having these stats won’t guarantee you a spot. But, they should at least get your application read. On the contrary, not having these stats may automatically disqualify you, unless you’re an under-represented minority, legacy, or recruited athlete. This is because many selective schools use the Academic Index as a screening tool.

Caltech Application Process

Application overview.

Caltech offers two programs under which you can apply: Early Action and Regular Decision . Caltech’s Early Action program is not binding, meaning that if you are admitted under Early Action, you are permitted to apply to other and consider other schools. 

Caltech accepts both the Common Application and the Coalition Application. Applicants must also submit a $75 application fee or a fee waiver . 

In terms of coursework, Caltech has high expectations for its incoming class. The school requires students to take the most rigorous English coursework offered by the school. Domestic applicants must take at least one course in U.S. history/government. For math, the school expects to see coursework at least through calculus, and strongly recommends students take it at the IB HL or AP level. 

For science, the admissions committee expects applicants to complete at least one year of physics and one year of chemistry, preferably taken at the highest levels offered by the school. Although biology is not explicitly required, it is recommended that you indicate your preparedness for the subject through other courses. If your school offers a calculus-based science class, Caltech would like to see that you took advantage of this opportunity. 

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Application Components

Beyond this, Caltech requires the following:

• 2 teacher evaluations
• Supplemental essays
• The secondary school report
• Academic transcripts

Let’s delve a bit more into letters of recommendation and supplemental essays.

Teacher Evaluations

Applicants must submit one evaluation from a math or science teacher and one evaluation from a humanities or social sciences teacher. These should focus on your academic performance. You also may submit up to two additional recommendations from other individuals, such as an extracurricular mentor or work supervisor, who can add another, non-academic dimension to your application. 

Supplemental Essays

Prompt 1: Describe three experiences and/or activities that have helped develop your passion for a possible career in a STEM field. Use the separate spaces provided below, one for each STEM experience and/or activity. (10-120 words each)

This essay functions as a set of three mini-essays, and should be ordered based on overall significance/priority. Because the word count is limited, your descriptions should be direct and carefully thought out to maximize space. You don’t need to mention how you developed your passion since you won’t have room, and there’s no need to transition between activities because Caltech made three different text boxes to keep your responses separated. Remember to clarify acronyms and use accessible terms.

Prompt 2: Much like the life of a professional scientist or engineer, the life of a “Techer” relies heavily on collaboration. Knowing this, what do you hope to explore, innovate, or create with your Caltech peers? (250-400)

This prompt focuses on collaboration and also contains a bit of a “Why Caltech?” element. Feel free to briefly touch on past collaborative experiences, but focus on your takeaways, what you learned, and which collaborative skills you’ll bring to the Caltech campus. You can also mention your interests within STEM by mentioning specific opportunities you’ve had, or you can also mention whether you’d like to start a new club – just remember to be specific and focus on collaboration within your descriptions. 

Prompt 3: Caltech students are often known for their sense of humor and creative pranks. What do you like to do for fun? (250-400)

In this prompt, applicants can explore their quirky side by writing about unique hobbies or elements of their personality. Try not to discuss cliched activities like watching Netflix unless you can spin them in a unique way, such as mentioning how you love doing impressions of your favorite stand-up comedian special. When thinking of unusual activities to include, we advise applicants to be careful with contentious topics like politics. If you engage in (tasteful) pranks, this is a great thing to touch on as prank wars are common within Caltech’s campus culture.

Prompt 4: The process of discovery best advances when people from various backgrounds, experiences, and perspectives come together. How do you see yourself contributing to the diversity of Caltech’s community? (250-400)

Here, Caltech asks you to address your own background and demonstrate that your contributions in high school will continue once you attend college. Discuss how you will enhance Caltech’s diversity of thought through how you generate ideas, analyze problems, or approach academic challenges.

With these four prompts, there’s a lot more to cover when it comes to writing the best essays possible for Caltech. Head over to our blog and check out our post on How to Write the Caltech Application Essays 2020-2021 . In this post, we walk you through how to answer each prompt, so if you’re applying to Caltech, be sure to check it out!

Already have drafts of your essays? You can get free essay feedback from other students using our Peer Essay Review tool .

When Will You Hear Back?

The deadline to apply to Caltech under Early Action is November 1st, and applicants will receive their decision in mid-December. Early applicants may be accepted, rejected, or deferred to the waiting list. The deadline to apply under Regular Decision is January 3rd and applicants will receive their decision in mid-March. 

Caltech Financial Aid

Financial aid generosity.

Caltech’s tuition costs $54,570 per year, and the total estimated cost of attendance is $77,718. The school is need-blind , meaning your ability to pay tuition will not impact your chances of acceptance.

Caltech also meets 100% of demonstrated financial need , and eligible applicants will receive a combination of grants, loans, and work-study to cover their costs. In terms of scholarships, the school has a host of outside scholarships available for prospective and current students to apply to. 

Caltech hasn’t released the most updated number, but in 2019, the estimated cost based on family income went as follows:

For even more information about the price of attending Caltech, check out our blog article What Does it Really Cost to Attend California Institute of Technology? . Here, we provide a comprehensive look into the costs of going to this university. 

How to Apply for Financial Aid

Caltech has financial aid forms available on its website. Students applying Early Decision need to submit a FAFSA by November 30th, and a CSS profile and IDOC documents by January 6th. Regular Decision applicants need to submit their FAFSA by March 2nd, and a CSS profile and IDOC documents by March 16th. 

What Are Your Chances of Acceptance?

If you’d like to know your personal odds of acceptance based on your current profile, check out our free chancing engine ! It can help paint a more accurate picture of your chances based on academics, extracurriculars, and demographics and will let you know how to improve your profile.

To learn more about Caltech, such as diversity stats, majors, and how long your app should take, check out our Caltech school profile page .

That’s all for our ultimate guide to Caltech – if you’re applying this admissions cycle, we wish you the best of luck!

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Caltech Supplemental Essays 2022-2023

By Eric Eng

When it comes to applying to the top schools in the country, your application is vitally important. In order to give yourself the best chance of gaining admission, you need to make sure all aspects of your application are top-notch. In this post, we’re going to do a deep dive into how to write Caltech supplemental essays and everything you need to keep in mind as you write.

Caltech uses the common app, and this means that you will be asked to answer essay questions contained in the common app. But like many top schools, Caltech also requires that you complete an academic essay as well as additional essays about your personal or intellectual growth. The Caltech supplemental essays 2022-2023 allow applicants a certain amount of freedom when choosing their supplemental essay topics, but we’re going to look at each essay prompt and discuss the best way to respond to each topic.

Caltech Supplemental Essay Prompts 2022-2023

So, let’s start by looking at each supplemental essay prompt, and then we will discuss how to approach each one individually.

As we said, there is one standard academic question that all applicants must answer. This is followed by three required short answer questions, and finally, three optional essay prompts. At AdmissionSight, when we hear the word “optional,” we hear “write the extra essay,” so we’re going to cover all of the prompts. These are the Caltech supplemental essays 2022:

Required Academic Question

Because of the rigorous core course curriculum, Caltech students don’t declare a major until the end of their first year. However, some students arrive knowing which academic fields and areas already most excite them, or which novel fields and areas they most want to explore.

If you had to choose an area of interest or two today, what would you choose? Why did you choose that area of interest? (Max: 200 words)

Required Short Answer Questions

• At Caltech, we investigate some of the most challenging, fundamental problems in science, technology, engineering, and mathematics. Identify and describe two STEM-related experiences from your high school years, either in or out of the classroom, and tell us how and why they activated your curiosity. What about them made you want to learn more and explore further? (Min: 100/Max: 200 words for each experience)
• The creativity, inventiveness, and innovation of Caltech’s students, faculty, and researchers have won  Nobel Prizes  and put  rovers on Mars , but Techers also imagine smaller scale innovations every day, from new ways to design solar cells to 3D printing dorm decor. How have you been an innovator in your own life? (Min: 200 / Max: 250)
• The process of discovery is best advanced when people from diverse backgrounds come together to solve the greatest challenges in their fields. How do your past experiences and present-day perspectives inform who you have become and how you navigate the world? (Min: 200 / Max: 250)

Optional Short Answer Questions

• If there are aspects of your identity that you feel are not captured elsewhere in this application, please provide that information below. (Max: 150 words)
• When not surveying the stars, peering through microscopes, or running through marathons of coding, Caltech students pursue an eclectic array of interests that range from speed-cubing to participating in varsity athletics to reading romance novels. What is a favorite interest or hobby and why does it bring you joy? (Max: 100 words)
• Did you have a hard time narrowing it down to just one interest or hobby? We understand – Caltech students like to stay busy, too – tell us about another hobby or interest! (Max: 50 words)

How to write the Caltech supplemental essays?

When it comes to how to write Caltech supplemental essays, creativity and academic curiosity are the main qualities you want to stress. While Caltech may be focused on sciences, they are still looking for creative thinkers, and your essays are a great place to demonstrate this.

The first required essay prompt asks you to reflect on which field of study you might choose as your major. Caltech acknowledges the fact that not all students arrive knowing which major they will pursue, but that isn’t what this essay prompt is really about. Instead, Caltech wants to see you demonstrate your commitment to learning and intellectual curiosity. If you already know exactly what you want to study, great! Write about why you became so passionate about it. If you aren’t sure which path you will take at Caltech, discuss the fields that excite you and how you will be able to continue your education at Caltech .

In the second section of the required Caltech supplemental essays 2022-2023, you will find two questions related to your academic career, and a final question about how your experiences in life have shaped you as a person.

The first short answer question is directly tied to your intellectual curiosity as it asks you to reflect on two STEM related experiences in high school that fueled your love of learning. The goal of this question is to write about experiences that opened your eyes to new aspects of STEM and motivated you to go further with it. This is where you can demonstrate that your passion for STEM is still growing.

The second short answer question asks you to think about the ways that you have been innovative in your own life. The point here isn’t necessarily to tout some impressive accomplishment, but rather to look at your life and the ways you’ve used your creativity to impact it. Again, the real focus of this question is revealing your creativity.

The third and final required Caltech supplemental essay 2022-2023 is focused on how you have worked collaboratively with people who are different from you. How have these experiences affected the way you view the world? How have these experiences affected the way you approach your fields of study? Caltech really wants to know if you are the kind of student who values collaborative work and the perspective of others.

The optional essay section—while technically optional—is an opportunity to tell Caltech more about you as a person. These questions are not focused on your academic history or your future academic plans, but rather on what makes you interesting as an individual. Again, these questions are technically optional, but at AdmissionSight we recommend taking advantage of every part of the application in order to give Caltech the most complete picture of you. With this last section, try to focus on having fun and being creative with your responses.

At AdmissionSight, our goal is to help you with every step of the college admissions process. The Caltech supplemental essays 2022 can seem daunting at first, but our experience and expertise will help you navigate the entire process with confidence. Hopefully, this guide to the Caltech supplemental essays 2022-2023 has been helpful, but if you want more information about how AdmissionSight can help you realize your dreams, set up your free consultation today.

Want to assess your chances of admission? Take our FREE chances calculator today!

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What Is the Purpose of the Caltech Supplemental Essay?

Reviewed by:

Former Admissions Committee Member, Columbia University

Reviewed: 7/10/24

When it comes to writing the Caltech supplemental essays, there are reliable strategies and approaches you can apply to improve the process. Let’s get into them.

Supplemental essays are an integral part of the college application process. For applicants looking to attend Caltech , the California Institute of Technology, these essays are your chance to show your passion for STEM and how well you align with Caltech's values and mission.

In this guide, we’ll discuss the nuances of Caltech's supplemental essays . Keep reading to explore these essays and learn how to make your application stand out in the competitive field of Caltech admissions.

Caltech Supplemental Essay Prompts 2023-2024

Get ready to dive into the Caltech supplemental essay prompts for the 2023-2024 application cycle.

“At Caltech, we investigate some of the most challenging, fundamental problems in science, technology, engineering, and mathematics. Identify and describe two STEM-related experiences from your high school years, either in or out of the classroom, and tell us how and why they activated your curiosity. What about them made you want to learn more and explore further? (Min: 100/Max: 200 words for each experience)”

“The creativity, inventiveness, and innovation of Caltech's students, faculty, and researchers have won Nobel Prizes and put rovers on Mars . But Techers also imagine smaller scale innovations every day, from new ways to design solar cells to how to 3D print dorm decor. How have you been a creator, inventor, or innovator in your own life? (Min: 200 / Max: 250)”

Caltech's mission – to cultivate learning, discovery, and innovation for the benefit of humanity – relies on its community members embracing fundamental Caltech values :

• Openness and enthusiasm for having preconceptions challenged
• Respect and appreciation for the idea that, while we are all members of the same community, the opportunities we've had to develop, showcase, and apply our talents have not been equal
• Passion for the ideal that science can and should meaningfully improve the lives of others

Share what one or more of these values evokes for you. (Min: 200 / Max: 400)”

To sum it up, when tackling Caltech's essay prompts, remember there are more essays to explore beyond the required ones we've discussed. 

These optional essays give you extra room to showcase who you are and how you connect with Caltech's mission. So, don't hesitate to write these optional essays to let your personality shine through in your application.

How to Write Each Essay Prompt For Caltech

In this section, we'll discuss how to write Caltech essays, providing guidance on how to craft thoughtful and engaging responses for each prompt. Quick tip before we get into it - Caltech is all about STEM, so embrace it in your supplemental essays. Dive deep into STEM-related topics, and don't be afraid to geek out.

How to Write Caltech Supplemental Essay #1 + Analysis and Tips

Analysis of prompt #1 : This Caltech application prompt invites you to explore your areas of interest, explain your passion for them, and describe how Caltech aligns with your academic goals. It's a chance to highlight your curiosity and demonstrate your fit with Caltech's values and resources.

• Engaging Introduction : Your essay should kick off with a captivating introduction that grabs the reader's attention. Consider starting with a personal story, a thought-provoking question, or a brief anecdote that relates to your chosen areas of interest. 
• Introduce Your Interests : Use the following paragraphs to introduce your chosen areas of interest. For each area, explain what specifically intrigues you about it. Share any personal experiences, encounters, or pivotal moments that sparked your interest. 
• Motivation and Connection : Beyond introducing your interests, get into why you've chosen these particular areas and why they resonate with you today. This is where you should explore the deeper motivations behind your choices. 
• Connect to Caltech: Demonstrate your knowledge of Caltech and how it aligns with your academic aspirations. Mention specific resources, faculty members, research opportunities, or programs at Caltech that are relevant to your chosen areas of interest. 
• Strong Conclusion : Wrap up your essay with a powerful conclusion that reinforces your passion for your chosen fields and your eagerness to explore them at Caltech. Leave the reader with a memorable statement that underscores your commitment to your academic journey. Be concise but impactful.
• Word Limit : Keep in mind the 200-word limit. Be succinct and make every word count to convey your message effectively.

How to Write Caltech Supplemental Essay #2 + Analysis and Tips

Analysis of prompt #2 : Prompt #2 asks you to reflect on your high school STEM-related experiences and demonstrate your curiosity, enthusiasm, and commitment to these fields. You should discuss two distinct experiences and explain what sparked your curiosity in each of them. Additionally, you can connect these experiences to Caltech's mission and values.

• Identify Two Experiences: Begin by identifying and describing two significant STEM-related experiences from your high school years. These experiences should be distinct and reflect different aspects of your engagement with STEM.
• Detail and Curiosity Activation : For the first experience, provide a detailed account of how and why it activated your curiosity. Dive into specific elements of this experience that ignited your interest, such as a challenging problem, a compelling concept, or the guidance of an inspiring mentor.
• Transition to the Second Experience : Transition smoothly to the second experience, repeating the process. Describe what sparked your curiosity in this instance and why it prompted you to delve deeper into the subject matter. Showcase Enthusiasm and Dedication : Throughout your response, aim to showcase your genuine curiosity, enthusiasm, and commitment to STEM. Share specific details or aspects of each experience that genuinely intrigued you, reinforcing your dedication to these fields.
• Clear and Concise Writing : Ensure that your writing is clear, concise, and well-structured while staying within the word limit.
• Connect to Caltech : In the concluding paragraph, consider tying back your experiences to Caltech's mission and values. Express how these experiences have prepared you to contribute to the Caltech community's spirit of scientific inquiry and innovation. 

How to Write Caltech Supplemental Essay #3 + Analysis and Tips

Analysis of prompt #3 : This prompt encourages you to think about your role as a creator, inventor, or innovator in your life and share your experiences. It's important to create a clear and engaging story that showcases your innovative mindset and how it aligns with Caltech's values.

• Captivating Introduction : Begin your essay with a captivating opening that introduces the theme of innovation. Use an anecdote, question, or thought-provoking statement to grab the reader's attention. The introduction should set the stage for your discussion of innovation in your life.
• Detailed Description of Innovation : In the following section, provide a detailed description of the specific innovation or project you want to highlight. Explain the context or problem that led to this innovation and how you approached it. Use vivid language to create a clear picture for the reader.
• Your Role in the Process : Share your role in the innovation process. Discuss the actions you took, the challenges you faced, and the decisions you made. Highlight your unique contributions and creative thinking that played a crucial part in the project's success.
• Impact of Innovation : Explain the impact of your innovation. Discuss what changed as a result of your work, whether it was a tangible product, a positive transformation, or valuable insights gained. Mention any recognition or awards you received for your innovation.
• Connection to Caltech : Draw a connection between your experience as an innovator and Caltech's values and culture. Explain why your innovative spirit aligns with Caltech's ethos of creativity and scientific exploration. Express your excitement about contributing to the Caltech community.
• Conclusion : Conclude your essay by summarizing your innovative experience and emphasizing the broader significance of creativity and innovation in your life. End on a forward-looking note, expressing your enthusiasm for continuing to explore innovative ideas at Caltech.
• Word Limit and Proofreading : Remember to stick to the specified word limit and carefully proofread your essay for clarity, coherence, and grammar. Your essay should not only showcase your innovative mindset but also engage the reader and leave a lasting impression.

If you need help writing your Caltech supplemental essays, our customized admissions counseling is here for you. Our team of specialists knows what Caltech looks for in applicants and will help make your application documents impactful. 

We support students from grades 6 through 12, helping them position themselves as strong candidates. With one-on-one guidance and profile development, we'll help you stand out in the competitive admissions process.

Ready to see your chances of getting into Caltech? Try our quiz !

Examples of Caltech Supplemental Essays That Worked

By exploring Caltech essays that worked, you get useful ideas and inspiration to improve your own application essays. Let’s get into them. 

Sample Essay #1

Prompt : “How do you see yourself contributing to the diversity of Caltech’s community? (Your response should range between 250-400 words.)”

Take a look at one of the example essays responding to this prompt: 

It’s not uncommon for universities to ask applicants to talk about what “different” element they’d bring to campus. People sometimes assume this means applicants must write about what makes them ethnically, racially, socioeconomically, or religiously distinct from “the norm.”

That’s never the case, and it’s certainly not the case here. You should encourage your child to think broadly about what diversity can mean. What makes them unique? What might make them unique on Caltech’s campus? And how will that unique attribute serve the community?

Roberto, for instance, might also have written about comedy here, arguing that his ability to fail publicly would make him a looser and more creative scientist. Here’s how Kendall, an Indian American applicant from Nashville, answered. He took this prompt as an opportunity to discuss his family’s genetic predisposition to cancer and how that has influenced him to pursue immunotherapy.

"Even though many family members live thousands of miles apart from each other, we have done everything from sharing knock-knock jokes to talking about a movie we just watched. Just as our love for one another connects us, our genes do as well. Although many traits that show up in these genes are desirable, there are many undesirable traits as well, including a high predisposition to cancer.

Cancer has affected the lives of many of my relatives across generations on both sides of my family. It seemed that with every year came a new diagnosis. However, the fear that accompanied my realization of our genetic proneness to cancer quickly turned into curiosity, and then a fuel for my passion of researching better and more effective treatments for this merciless disease.

Having cancer run through my family means that I have first-hand experience of the effect a diagnosis can have on a patient’s family. When my aunt was diagnosed with advanced stage breast cancer, I learned that chemotherapy and  radiation is grueling and painful for a patient and their family.

The nausea, vomiting, fatigue, and anemia appalled me. How could this treatment be the only option? With nearly two million diagnoses in 2018, that meant a lot of chemotherapy and pain. This realization pushed me to look further into alternative forms of treatment.

After some searching, I came across the term “immunotherapy,” which used the power of the human body’s immune system to kill cancer cells. This type of treatment caught my interest, as it addressed the use of genetics in medical treatment.

My familial background of cancer has led me to want to help solve the problem of finding better treatment options for cancer in the form of immunotherapy, which I will explore in an internship this fall at UC San Diego. In the future, I would like to research the effects of immunotherapeutic treatment of cancer, to see if our immune system can beat this disease.

At Caltech, I will share my family’s story to inspire my peers as they spend long hours conducting research and studying biochemical pathways. My family’s story will remind them that their inventions and discoveries will have a direct impact on ordinary people who know nothing about genomes or thermodynamics. Together, my peers and I can find more effective treatments and solutions so that next generations can not just survive, but thrive.”

Why Essay #1 Worked

This essay effectively tackles the diversity prompt by taking an unconventional and inclusive approach to diversity, moving beyond traditional factors like race or ethnicity.

By sharing Kendall's personal story related to his family's genetic predisposition to cancer, the essay adds authenticity and depth to the narrative. It illustrates how personal experiences can shape an individual's intellectual and career path.

What sets this essay apart is its ability to connect Kendall's personal journey to broader societal implications. It highlights his interest in immunotherapy as a potential solution to address genetic factors in cancer treatment, emphasizing the real-world impact of scientific research.

Furthermore, the essay underscores the importance of sharing personal narratives to inspire peers and emphasizes how scientific innovations can directly affect people's lives.

Overall, this essay offers a compelling narrative that presents a unique perspective on diversity and a clear sense of purpose in contributing to the Caltech community.

Sample Essay #2

Prompt : “If you had to choose an area of interest or two today, what would you choose? Why did you choose that area of interest? (Max: 200 words)”

Check out this sample supplemental essay: 

“If I had to choose an area of interest or two today, my top choices would be artificial intelligence (AI) and renewable energy. AI's potential to transform industries and improve lives is incredibly exciting. Its interdisciplinary nature, combining computer science, neuroscience, and ethics, offers endless possibilities for innovation.

One example that illustrates my interest in AI is my involvement in a machine learning project during my undergraduate studies. We developed an AI-based system to predict disease outbreaks, which showed me the profound impact AI can have on public health. Renewable energy is equally compelling. Addressing climate change is a pressing concern, and 

I believe that sustainable energy solutions are a critical part of the solution. My involvement in a solar energy community project further fueled my passion for renewable energy.

These choices align with my passion for using technology to solve real-world problems and my belief in the ethical responsibility of scientists and engineers. Both AI and renewable energy represent the future of innovation, and I'm eager to be part of that journey.”

Why Essay #2 Worked

This essay works because it directly and concisely addresses the prompt. The applicant clearly states their areas of interest—artificial intelligence (AI) and renewable energy—and provides solid reasons for their choices.

Their enthusiasm for AI's transformative potential and the interdisciplinary nature of the field shines through, backed by a real-life example of a machine learning project they were involved in during their undergraduate studies.

Likewise, their passion for renewable energy is evident, driven by the urgency of addressing climate change and a hands-on experience in a solar energy community project. These interests are not only personally meaningful but also align with broader societal and environmental concerns.

The essay also emphasizes the ethical dimension, highlighting the applicant's belief in the responsibility of scientists and engineers to address real-world issues. Overall, it's straightforward, genuine, and effectively communicates the applicant's motivations and aspirations within the given word limit.

Sample Essay #3

Prompt : “At Caltech, we investigate some of the most challenging, fundamental problems in science, technology, engineering, and mathematics. Identify and describe two STEM-related experiences from your high school years, either in or out of the classroom, and tell us how and why they activated your curiosity. What about them made you want to learn more and explore further? (Min: 100/Max: 200 words for each experience)”

Consider this essay as an source of inspiration for tackling this prompt:

“ During high school, two experiences in STEM (Science, Technology, Engineering, and Mathematics) ignited my curiosity and passion for these fields.

First, in a physics class, we explored electromagnetism by building electrical circuits. Witnessing a light bulb illuminate when I connected wires was a eureka moment. It revealed the power of understanding the fundamental laws governing our universe and their role in shaping technology. This experience deepened my interest in physics and its practical applications.

Outside the classroom, I participated in a robotics competition. Collaborating with a team to design, build, and program a robot was exhilarating. It demanded creativity, problem-solving, and technical skills. Seeing our robot successfully tackle challenges highlighted the synergy between engineering and computer science. This competition showcased the endless possibilities in STEM and motivated me to explore the field further.

These experiences made STEM tangible, showing its real-world implications. They convinced me that STEM isn't just theoretical but has practical applications. This drove me to pursue a STEM-focused education at Caltech and to contribute to solving the intriguing challenges these fields present.” 

Why Essay #3 Worked

This essay works because it clearly addresses the prompt by discussing two specific STEM-related experiences from the applicant's high school years.

In the first experience, the applicant talks about a physics class experiment with electromagnetism, where they had a "eureka moment" upon seeing a light bulb illuminate. This vividly illustrates their fascination with the practical applications of fundamental scientific principles.

The second experience involves participating in a robotics competition, which showcased the applicant's enthusiasm for engineering and computer science. They emphasize the creative and problem-solving aspects of this activity, which are essential skills in STEM fields.

The essay effectively links these experiences to their motivation to pursue STEM education at Caltech, highlighting the real-world implications of these fields and their desire to contribute to solving complex challenges. It's a concise and well-structured response that directly addresses the prompt's requirements.

Got questions? We've got answers! Check out these FAQs to get the lowdown on Caltech supplemental essays.

1. Is It Acceptable to Write a Creative or Unconventional Essay for Caltech?

Yes, it is acceptable to write a creative or unconventional essay for Caltech. In fact, Caltech encourages applicants to be authentic and innovative in their responses. They want to get to know you as an individual, so if a creative or unconventional approach helps you express your personality and ideas effectively, it can be a great choice.

2. What Qualities or Characteristics Is Caltech Looking for in Applicants Through This Essay?

​​Caltech is looking for applicants with a passion for STEM . It’s also interestewd in individuals with intellectual curiosity, problem-solving skills, and personal qualities like resilience, collaboration, and creativity. They want to know how you'd contribute to their community.

3. Can I Reuse an Essay from Another College Application for Caltech Application?

Reusing essays for Caltech or any other school is not advised. Different institutions have specific prompts to assess fit. Tailoring your essays to Caltech's unique aspects and values is crucial to show your alignment with their mission and culture.

4. Is There a Recommended Structure or Format for the Caltech Supplemental Essay?

For the Caltech supplemental essay, there's no strict format, but clarity, conciseness, and organization are crucial. Begin with a compelling introduction, present ideas logically, and use specific examples. Address the prompt directly and demonstrate your passion for STEM and alignment with Caltech.

5. How Many Essays Caltech Required?

Caltech's application consists of one required academic question, two required short answer questions, and one question about Caltech's values. In addition, there are two optional short answer questions and two optional academic short answer questions for applicants to choose from.

Final Thoughts

Whether you’re applying to Caltech or MIT , Harvard or Stanford, your essay matters. So do your best to write one that stands out from the crowd. 

When it comes to the Caltech supplemental essays, follow the tips and advice provided in this blog to craft strong, STEM-focused narratives that reflect your identity and experiences. These essays are your chance to stand out and make a lasting impression on the admissions committee. Good luck with your Caltech application!

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California Institute of Technology (Caltech) 2018-19 Supplemental Essay Prompt Guide

Regular Decision: 

The Requirements: 3 long essay of 250-400 words; 3 short essays of 120 words each

Supplemental Essay Type(s): Community , Activity , Short Answer , Oddball

California Institute of Technology (Caltech) 2018-19 Application Essay Question Explanations

Describe three experiences and/or activities that have helped develop your passion for a possible career in a stem field. use the separate spaces provided below, one for each stem experience and/or activity., stem experience/activity 1 and explanation (your response should range between 10-120 words.): stem experience/activity 2 and explanation (your response should range between 10-120 words.): stem experience/activity 3 and explanation (your response should range between 10-120 words.):.

Think of this as three hyper-specific activity essays. It’s common practice for schools to ask applicants to expand on an activity that has been meaningful to them, which opens up an opportunity for you to highlight your leadership qualities and creative skills. In this case, Caltech, in its scientific precision, has asked you to write about exactly three (3) experiences or activities related to STEM (which stands for Science, Technology, Engineering, and Math, in case you didn’t know). The thing is, this is Caltech: every applicant probably has something interesting to say about this topic! So you’re going to heed to work extra hard to stand out. Although this prompt asks for three distinct descriptions, you should still think about your answers as one cohesive story where each chapter reveals something new. What connects your three experiences? Is it simply growth over time (from doing a lab in class to eventually interning in a real research lab)? Or is it more thematic (gardening, field research, and earth science tutoring)? Make those connections crystal clear to demonstrate not just intention but direction: you are clearly headed towards a promising career in STEM. Also keep in mind that Caltech asks for “experiences” OR “activities” meaning you can choose formal school activities, professional experiences, and even informal experiences.

Much like the life of a professional scientist or engineer, the life of a “Techer” relies heavily on collaboration. Knowing this, what do you hope to explore, innovate, or create with your Caltech peers? (Your response should range between 250-400 words.)

Caltech wants to know that you’re a team player. As far as topics are concerned, any time you worked with others is fair game, so don’t restrict yourself merely to your science fair project or the dance squad. This could be the perfect opportunity to write about a professional experience (your first time working as a camp counselor!) or even community service (organizing the coat and blanket collection at your church!). Ideally, you should describe an experience that spans a decent amount of time — a few weeks or even months — so you can describe the phases of your work and the end result. What challenges did your team face? Were they internal, organizational issues? Or were there larger, external problems that you had to face as a single strong unit? In what ways were you a leader, but more importantly, how did you allow others to lead? It’s all well and good to say that you spearheaded your group history project, but remember that this question is about collaboration. A more reflective and honest essay will consider how each person’s unique contribution set the course for your team’s success (or failure). If you’re talking about a large group (singing in a 100 person choir!), perhaps you’ll want to focus on the values or goals that are strong enough to unite such a large group of people. In the end, you should be able to clearly state a lesson that you will carry with you into the future. In other words: an experience that will have a positive impact on your collaborative work at Caltech.

Caltech students are often known for their sense of humor and creative pranks. What do you like to do for fun? (Your response should range between 250-400 words.)

We usually caution applicants against being weird for weird’s sake, but in this case, Caltech is asking for just that! If you identify as a quirky person, you’ve probably already got an idea or two, but if you don’t, you could find yourself drawing a blank. In either case, our advice remains the same: (a) use your judgement, and (b) don’t force it. There’s a fine line between charming quirk and alienating strangeness, so stick to describing hobbies that won’t get you arrested. Take your cues from your friends and family. Does your father sigh an affectionate sigh every time you decide to ride your unicycle to school? Do your friends affectionately tell and retell the tale of the time you all tried, in vain, to do the cinnamon challenge? What do you do to entertain people? Remember, Caltech wants to know how you have fun, so it’s okay to get a little bit silly with this essay and even make fun of yourself a bit. Identifying your own quirks is, in itself, an exercise in self-awareness; the more you display this quality, the more down to earth and humble you will seem.

The process of discovery best advances when people from various backgrounds, experiences, and perspectives come together. How do you see yourself contributing to the diversity of Caltech’s community? (Your response should range between 250-400 words.)

You could look at this question as a reverse why essay. Caltech isn’t asking why you want them, but why they should want you. What will your unique contribution be? Before you start writing this essay, you’ll want to start out with some good old fashioned research. Learn about the school, what it offers and values, and what its students are like. Think about Caltech in the abstract — what is it like, and how might your presence shake things up (in a good way)? First and foremost, is there something in your background or upbringing that would make you stand out from your peers? Diversity can be defined in many ways. Typically, we think of things like race, class, political affiliation, and religion. But diversity could also speak to something unique in your lived experience. What have you done that few other people have done before? How has this affected your worldview in a way that distinguishes you from your peers?

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First-Year Application Requirements

There are two ways to apply to caltech. select the option that fits you best., application materials.

• Common App or QuestBridge Application
• $75 application fee or fee waiver .
• 1 STEM: Calculus (or beyond), Chemistry, Physics, or Biology
• 1 Humanities or Social Sciences: English, History, Government, or Economics
• School Report: This is a document that your high school college counselor will send to Caltech that provides context about your school. You can request your counselor complete it through either application platform. Additionally, your counselor will submit a letter of recommendation on your behalf.
• Official transcripts from your secondary school (grades 9-11, or the international curriculum equivalent). Transcripts must be submitted by a school official.
• If you have taken college classes while in high school, please provide the college transcript, as well. You can upload unofficial transcripts, however, will need to send official ones if admitted and enrolled.
• Mid-Year Report (due when first term senior grades are available at your school).
• If you have taken AP or IB examinations, you will be asked to submit those scores as well.
• English Language Proficiency Test (if International applicant)
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International applicants

Caltech defines an international applicant as a student who is neither a US citizen nor a permanent resident and who has attended secondary school outside of the United States.

Additional requirements of applicants who are international applicants :

• English Proficiency Exam scores: Required of all international applicants unless 1) your native language is English or 2) English is the primary language of instruction in your secondary school. We accept the Duolingo English Test (DET), IELTS, or the TOEFL. The English proficiency exam must be taken prior to the application deadline.
• International Financial Aid Statement of Intent: When an international student applies for first-year admission, the application prompts questions to confirm their understanding of our financial aid policy and thus confirm their financial aid intent towards Caltech. Caltech is need-aware for international applicants because the total amount of financial aid funds is limited for these students, and we remain committed to meeting the demonstrated need of all admitted students.
• Translation of documents:  All application materials must be submitted in English. If they were originally printed in a language other than English, we require the original document and an English translation. We will not review your application if any part is not translated in English .

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You are welcome to provide supplemental materials that you believe will help our admissions committee learn more about you. These materials may include but are not limited to:

• Research paper or publication preferred (citation if published, letter of recommendation, and research description required)
• STEM Portfolio
• Non-STEM Portfolio

After the application deadline, you will receive a link to the Caltech application portal, the Beaver Breakroom , which will include instructions on submitting supplemental materials .

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Upon admission, Caltech reserves the right to conduct verifications of submitted proofs. Any discrepancies or falsifications will result in the rescission of your admission to Caltech.

Policy on Minimum Age for On-Campus Housing for Undergraduate Students

Beginning in fall 2023, Caltech has enacted a policy on minimum age for on-campus housing for undergraduate students .

California Institute of Technology Essay Guide 2020-2021

In this California Institute of Technology essay guide, we will give tips for applicants to best express themselves in their personal statements as prospective Caltech students. For more guidance on personal essays and the college application process in general,  sign up for a monthly plan to work with an admissions coach 1-on-1. other CollegeAdvisor.com Admissions Experts , register with CollegeAdvisor.com today.

The California Institute of Technology (Caltech) – famous for both its prestige in STEM and its wild pranks – is a private research institution in Pasadena, California, home to the Rose Bowl and a short drive away from Los Angeles. Caltech is one of the smallest schools in its prestige level, with an undergraduate enrollment of only 948 students. The admission rate in the past has hovered around 7%, though the exact number is not published directly by the university.

Life as a Caltech Undergrad

At California Institute of Technology, students are expected to focus their studies on STEM subjects, ranging from biophysics to planetary sciences. Many Caltech students pursue graduate studies in research or work in an industry, such as the nearby center for NASA’s Jet Propulsion Laboratory (JPL). The Core Curriculum at Caltech requires courses in humanities and social sciences, mathematics (including multivariable calculus and linear algebra), and physical education. Students are also expected to take a course in scientific writing, in line with Caltech’s goal of producing top-notch researchers. Caltech students are perhaps most well-known for their pranks, many of which are city-wide, including changing the Hollywood sign or pranking Caltech’s rival school, MIT.

Because of its small community, Caltech houses a tight-knit student population and emphasizes intimacy in its classes. The Caltech student population is organized into a “House System,” modeled after the residential college system of Oxford and Cambridge. At the start of freshman year, students undergo a two-week rotation through the houses to get a feel for each, then rank their preferences. The student will then be aligned with one house for the rest of their undergraduate career. Each house has its own slogan, website, and, some say, personality.

In summary, Caltech offers its students a rigorous and fun education in a tight knit community in Southern California. Admission to Caltech is highly selective and the first step towards an acceptance is making your application stand out. Caltech is looking for intellectually curious and driven students with passionate stories who know how to work hard and play hard. The supplementary essays provide the opportunity to demonstrate that you possess all of these qualities.

Prompt #1: Describe three experiences and/or activities that have helped develop your passion for a possible career in a STEM field. (Your response for each experience/activity should range between 10–120 words.)

The Admissions Office asks this question to learn more about your background in STEM, since Caltech is a technical institute that emphasizes rigor in STEM classes. In your answer, highlight experiences that show you can handle Caltech’s rigor, demonstrate your passion for STEM, and explain major takeaways from each experience that have helped inform your future career.

Carefully consider which extracurriculars you want to include on this list – start by thinking about ones that you can connect to your future career, and what type of research you hope to pursue at California Institute of Technology. Focus on extracurriculars that are a major part of your application, that you’ve dedicated time and/or leadership to, or where you can highlight specific accomplishments . An example could be a STEM competition, a school organization, research, or work position.

Keep in mind – this prompt is only 120 words . That means, you likely won’t be writing narratively (unless you can keep it to 40 words each!) and will have to consider each word and focus of this answer carefully .

In my essay, I focused on the three main STEM activities in my high school career – a school organization, Science Olympiad, which often placed highly in competitions in our state, and of which I was the captain. However, rather than focusing on my position or awards (which were listed in the extracurricular section of my Common App) I focused on my interest, my experience, and specifically what skills I gained, such as sawing or drilling.

I also mentioned the breadth of my events, connecting them to my intended major at California Institute of Technology. My other two activities were both research internships – one in bioengineering, the other in surgical skills. In both, I focused specifically on skills and topics I was exposed to, which I was unable to fit into my original extracurricular description.

Prompt #2: Much like the life of a professional scientist or engineer, the life of a “Techer” relies heavily on collaboration. Knowing this, what do you hope to explore, innovate, or create with your Caltech peers? (Your response should range between 250–400 words.)

In this essay, Caltech is asking about several major themes: collaboration, innovation and goals, and finally, Caltech. In your response, you should demonstrate that you have done your research into Caltech, whether that be projects you would like to join with renowned professors, or ways in which you would contribute to the California Institute of Technology community.

In many ways, this essay is a clever combination of a typical “Why School” prompt and an emphasis on Caltech’s values. In your answer, be specific, whether by mentioning Caltech traditions you would like to be a part of (the Pumpkin Drop? the pranks?), professors you want to work with, or classes you’re excited for. Note: Do not just name drop several professors. When you mention professors, write about their work and research, beyond just their broad field. Why does that research area excite you?

In addition to the typical aspects of a “Why School” answer, you should always consider the specifics of the prompt — collaboration and innovation. Thus, do research into student-led initiatives , such as science for the community, or an independent student project. All is fair game, and don’t be afraid to be imaginative — what projects have you always wanted to work on? At California Institute of Technology, you’ll have the mentors and the resources to accomplish it.

In my year of admissions, this prompt was not given, but a very similar one was. In my essay, I emphasized my intellectual curiosity and described my goals at California Institute of Technology specifically. I focused on specific courses and research projects I wanted to contribute to, specifically in relation to brain sciences and epigenetics. I related my interests to volunteer work I had done in high school and my passion to be a driving force in working towards a solution. My answer also included a specific reference to the small class size at Caltech and included a personal narrative in which I relayed both my passion for biology and my relationship with my biology teacher, communicating my hope for building a one-on-one mentorship relationship with a professor.

Prompt #3: Caltech students are often known for their sense of humor and creative pranks. What do you like to do for fun? (Your response should range between 250–400 words.)

In this essay, the Admissions Office at California Institute of Technology is trying to get to know you better. Caltech’s community is made up of quirky students – your answer to this question should help the admissions officer get to know what makes you, you.

With this essay prompt, consider a unique aspect of yourself – or a unique spin on that aspect! This is not necessarily the essay to drive home again that you are passionate about STEM — unless there’s an unshared, specific, and unique activity you do related to STEM. This is the prompt to show that you are human – not just a student!

One common issue that many students run into is: unique? But I can’t think of anything that I do that’s unique…I know at least X amount of people out there who do X thing! The question is, how does this activity emphasize your personality, passions, or quirks? Does it bring out certain traits that make you unique? Do you engage with this activity in a special way? Your perspective on yourself is key to answering this prompt creatively – it might not be the activity itself that’s special, but your take on it and the way you choose to present your passion to the readers.

In my essay, I focused on an activity I genuinely did for fun – I had no competitions, no awards, no group activity, and honestly, no reason for its inclusion in my application. But I had a story. I chose to write about singing and taking voice lessons. This is not a unique activity, clearly – plenty of students sing, and many are in award-winning choirs and competitions. I wrote about the vocal exercises that students practice – shouting the funkiest words out the window to improve flexibility and vocal strength. I spoke about what it meant for me to learn to sing, how it has impacted who I am, and mentioned specific examples: my early love of musicals and the alto female voices found on Broadway.

Again, my experience is in no way special, as many students might have the very same activity and passion – but it was in the way I expressed that passion, through specific examples and references, that ultimately made my essay an interesting read.

Prompt #4: The process of discovery best advances when people from various backgrounds, experiences, and perspectives come together. How do you see yourself contributing to the diversity of Caltech’s community? (Your response should range between 250–400 words.)

The diversity essay is one that stumps many a student. Maybe you come from a community where mostly everyone acts like you, or thinks like you. That’s a majority of the population! With this question, California Institute of Technology wants to know: what perspective do you bring to the table? How do you add to the community in your own way?

Often times, diversity is directly connected in our minds to culture and race. This is not necessarily true – diversity can be found in a range of perspectives and experiences. Finding a story personal to your own experiences is key to brainstorming for this essay prompt. What events in your life have come together to shape you and who you are today? And the answer can be any number of experiences, as long as you be true to yourself and explain how they have impacted you.

In my response, I actually did write about culture — particularly, how my father’s Brazilian culture and my mother’s Taiwanese culture clashed in my childhood. I drew from each side of my upbringing in order to explain how they’ve contributed to who I am today, what traits make up my being. I referenced not only the culture, but the arguments that have contributed to my values today — as a person and student.

This California Institute of Technology essay guide was written by Katie Chiou, Brown University ‘21. If you want to get help writing your Caltech application essays from Katie or other CollegeAdvisor.com Admissions Experts , register with CollegeAdvisor.com today.

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