the flexible egg experiment

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Egg in a bottle.

You don't have to be an egghead to know that science can be fun. Show your child a trick where the ordinary becomes extraordinary!

In this experiment, a hard-boiled egg will fit through a suspiciously small opening with the help of only a few matches. Your child will be amazed, and you'll be teaching her how seemly impossible acts are anything but—with the help of a little science!

What You Need:

• Adult helper
• Hard-boiled egg
• Glass bottle with opening slightly smaller than egg (apple cider or juice bottles work well)

What You Do:

• Hard boil an egg by placing the egg in a pot of cool water so the water entirely covers the egg and bring the water to a boil on high heat. You may want to hard boil several eggs at a time so you can do the trick more than once. 
• Once the water comes to a boil turn the heat off, but don't take the pot off the stove yet. After about 10 minutes, remove the pot from the stove and place the pot and egg under cold running water for a few minutes. Let the egg cool.
• Remove the egg from the water and help your child peel the shell.
• Have your child place the egg on the opening of the bottle. Point out that the egg will not simply fall into the bottle. Tell him that despite appearances, it is  possible to get this egg into the bottle in one piece.
• Take over duties and light two matches. Quickly drop them into the bottle. Have your child quickly place the egg on top of the bottle, wait a few seconds, and watch the egg drop into the bottle.

How it works:

This mind-blowing egg experiment is all about pressure. When you drop matches into the bottle, the air heats up. As the heated air expands, some of it escapes from the bottle. When the flames go out, the air inside the bottle cools and contracts and the egg on the bottle creates a seal. The pressure inside the bottle is now less than the pressure outside the bottle, and because nature trends toward all things being equal, the egg is forced into the bottle. To get the egg back out, you'll have to reheat the bottle. As the bottle warms up the increased air pressure will force the egg back out.

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Bouncy Egg Experiment Easy Science Directions, Worksheets + Video

Find out what’s inside an egg and how to make it bounce without cracking it. Follow the easy directions and print the bouncy egg experiment…

F i nd out what’s inside an egg and how to make it bounce without cracking it. Follow the easy directions and print the bouncy egg experiment worksheets.

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We can’t tell you if the chicken or egg came first, but we can tell you how to make an egg bounce (a.k.a. naked egg experiment). Just follow the step-by-step instructions to learn how to remove the eggshell of raw eggs, no boiling is required, so your kids can participate in all the steps to complete the experiment making it a wonderful hands-on-science-experiment! 

Everything you need to do this fun science experiment can be found in your kitchen which is nice because you don’t have to run to the store (or Amazon) for any special supplies. It also helps increase the mystery of this science experiment for your children because they have all seen an egg crack…so  wondering how to make an egg bounce comes naturally and curiosity leads to exploration! 

See all our Science Activities Here like our Leaf Chromatography Experiment and How to Grow a Rainbow .

I LOVE science experiments so much because children LOVE doing them, and as they do them they learn firsthand about science concepts and the world around them. I want you to have a successful experiment so on top of giving you the directions and video tutorial , I have also created a  science activity pack  to make STEM activities in your home or classroom a cinch (See our other Science Packs Here ). 

The Bouncy Egg Science Pack includes:

• Read Aloud Narrative to introduce the activity (science pack exclusive)
• Supply List
• Science Explanation
• Egg Experiment Worksheets (science pack exclusive)
• Parts of an Egg Diagram (science pack exclusive)

The worksheets add to the learning by guiding children to think like a scientist  as they go through the scientific process and learn about eggs and chemical reactions. Everything is ready for you, so besides gathering the supplies, there is no prep for this simple experiment .

Now, let’s get started and make an egg bounce a.k.a. rubber egg experiment a.k.a. Naked Egg experiment (the latter being my kid’s favorite name to call it…they are so silly)!  

When the experiment is completed and the eggshell is removed the egg will be bouncy and your children’s natural curiosity will be to play with it. This is great just be prepared to clean it up because it will break with enough pressure or force. When you are all done bouncing it, give your rubber egg a pop and see what’s inside.

FAVORITE EGG BOOKS TO ADD MORE LEARNING AND FUN!

Click photos and links: Affiliate links to more information on these books and supplies we love! 

(Purchases through affiliate links earn us a small commission with no extra cost to you. See our  Disclosure Policy here. )

Bouncy Egg Experiment

If you like our Bouncy Egg Science Experiment I would love for you to PIN IT! It helps others discover it too, which helps us bring you more AWESOME CONTENT like this .

• 2 Chicken Eggs (raw, any color)
• White Vinegar
• 2 Jars that an egg can fit in
• Food Coloring
• Small Scale
• Extra egg to crack and observe

Directions:

Watch our Video Tutorial to see how to do this experiment. The  directions and learning worksheets  can be purchased and downloaded. 

• Decide which egg is going into the water and which egg is going in the vinegar. 
• Weigh each egg and record the weight on your worksheet. 

• Label the jars, Vinegar and Water. 
• Carefully place each egg in a jar and cover one egg with water and the other egg with white vinegar. You can add food coloring to the jar, however, note that it may make it harder to observe the egg and the results. (Look below for the photo example of the egg with food coloring… It looks like the Easter Bunny dyed it)

• Let the eggs sit 24hrs. undisturbed. Once the bubbles made of carbon dioxide gas, stop appearing on the vinegar egg and the shell is visibly changed, continue with the experiment. (It will look like chalk is on the outside of the egg). You can let your egg soak for 1-3 days. The longer the better. 

Bouncy Egg Experiment Results

• Size, color, weight, feel 
• Optional: Weigh the eggs and record the weight on your worksheet. 
• Optional: Hold a flashlight to the eggs. Can you see through the egg’s membrane? Do you see the yolk?

Can You Bounce an Egg?

• Optional: When you are done bouncing the egg pop it inside a bowl and observe. 

What Happens When You Put an Egg in Vinegar? Science Explained

The eggshells of chicken eggs are mostly made of calcium carbonate which is insoluble in water and soluble in vinegar. When the egg was covered with water in our control jar, the shell stayed intact. 

When the egg was covered with vinegar, the calcium carbonate in the eggshell immediately started to dissolve. Through this chemical reaction, the vinegar was breaking down the calcium carbonate and releases carbon dioxide. We could see the carbon dioxide bubbles on the outside of the egg. Once the hard shell of the egg is removed, the flexible membrane of the egg stays intact, creating a bouncy egg. 

The egg in the vinegar also gets larger because the vinegar is absorbed into the egg through the permeable membrane. When liquids travel through a membrane it is called osmosis.

Print the Bouncy Eggs Directions and Worksheets:

Don’t see the box?  Click Here  to be taken to the download.

Also Available on  Etsy  and  Teachers Pay Teachers .

Egg In A Bottle

Flexible egg experiment ~ egg in a bottle.

Your kids are going to love with this classic  science experiment .  It has a serious “wow” factor.  Fitting a hard-boiled egg through a suspiciously small opening is impossible.  However, with the help of a few matches…amazing things can happen.

I’m excited to be teaming up with my good friend Nathan from  Minnesota Cold  for a fun series all about eggs.  We are sharing “egg-citing” experiments and unique ways to color eggs.  No traditional egg dye here!

Materials Needed:

• Peeled Hard Boiled Egg
• Glass Bottle ~ It needs to have a neck a little smaller than an egg
• Paper Strip

Set the egg on top of the bottle, just to show that the egg won’t go into the bottle.

Light a piece of paper and let it burn for a sec then drop it in your bottle.  Immediately set the egg on top of the bottle.

Watch carefully as your egg starts to get sucked in to the bottle as the flame goes out.

Egg Experiments featured in the video:

Golden Egg Experiment

• Silver Egg Experiment

Volcano Eggs

Egg in a Bottle

What Happens to an Egg in the Microwave

• Raw or Hard Boiled?

How to Peel an Egg the Easy Way

For more amazing experiments, especially ones that embrace the cold, check out  Minnesota Cold  on YouTube.  A few of my favorites include  blowing frozen bubbles ,  sledding on a frozen towel  and jumping on a  frozen trampoline .

Related posts:

• What Happens If You Microwave An Egg?
• How To Make A Golden Egg

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Bouncing Egg Experiment: Transforming an Egg with Vinegar

The bouncing egg experiment is a unique and fascinating activity that demonstrates the effects of chemical reactions on everyday objects. By dissolving the shell of an egg using vinegar, you’ll create a flexible egg that can bounce without breaking. This experiment provides insights into the properties of acids, shells, and the permeability of egg membranes.

Materials Needed for this science experiment:

• Raw egg (uncooked and with shell intact)
• White vinegar
• Clear glass or plastic container
• Protective cover for the workspace
• Optional: Food coloring, magnifying glass

1. Set Up the Workspace: Choose a clean and well-ventilated area for your experiment. Place a protective cover on the surface to catch any spills.

2. Place the Egg in the Container: Gently place the raw egg in the glass or plastic container. Make sure the egg is fully submerged.

3. Add Vinegar: Pour enough white vinegar into the container to completely cover the egg. You can add food coloring to the vinegar if you want to enhance the visual effect.

4. Observe the Reaction: Watch as the vinegar begins to react with the eggshell. Bubbles will form on the surface of the eggshell, indicating that a chemical reaction is occurring.

5. Let It Soak: Allow the egg to soak in the vinegar for at least 24 hours. During this time, the acetic acid in the vinegar will react with the calcium carbonate in the eggshell, causing it to dissolve.

6. Check Progress: After 24 hours, carefully remove the egg from the vinegar using a spoon. Gently rinse it with water to remove any vinegar residue. You’ll notice that the shell has become soft and might even be peeling away.

7. Test Bounciness: Hold the egg a few inches above a soft surface (such as a towel or sponge) and gently drop it. Observe how the egg bounces without breaking due to the absence of the hard shell.

8. Observe the Egg’s Properties: Examine the egg closely. You’ll find that the eggshell has dissolved, leaving behind a flexible and translucent membrane that’s still holding the egg’s contents.

9. Discuss the Science: Explain to children that the eggshell is primarily made of calcium carbonate, which reacts with the acetic acid in the vinegar to produce carbon dioxide gas. The gas forms bubbles that create pressure inside the shell, eventually leading to its dissolution.

10. Explore Further: Use a magnifying glass to examine the membrane and its texture. Discuss the permeability of the membrane and how it allows certain substances to pass through.

11. Safety Note: Make sure to handle the egg carefully, as the membrane can still be delicate and prone to tearing.

The Bouncing Egg experiment is not only a captivating demonstration of chemical reactions but also an opportunity to discuss the properties of materials and the permeability of membranes. It provides a hands-on way for children to explore the effects of acids on objects and understand how scientific concepts apply to everyday items.

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Science Projects > Life Science Projects > Foldable Egg and Floating Egg Science Projects  

Foldable Egg and Floating Egg Science Projects

Around Easter each year, most of us find ourselves suddenly charmed by that humble breakfast staple: the egg. Nestled under shrubbery and snuggling tulips in flower beds, hidden eggs await Easter egg hunts. Dotted, dipped, and dyed, colored Easter eggs adopt an artistic air. But the following egg activities are not art, but science. Learn the chemistry concepts of dissolving and density with a foldable egg project and a floating egg experiment.

Foldable Egg Science Project

Here’s a neat trick: dissolve an egg’s shell to find the thin egg-shaped inside layer and discover how strong and flexible it is when you fold it up and then inflate it with air like a balloon!

Parents: Please note that the preparation for this experiment requires careful handling of a raw egg. We strongly recommend that you prepare steps 1-5 of the project in advance. You can view a demonstration of the project first.

What You Need:

• raw egg (at room temperature)
• drinking straw
• white vinegar
• baby powder (or cornstarch)
• an adult to do steps 1-5

What You Do:

1. The first step is to blow the contents out of a raw egg. Hold the egg over a bowl and use a thumbtack to pierce a small hole in the pointed end and a larger hole in the other end of the egg. (To enlarge a hole, make several small holes close together and use the tack to gently break away the shell between them.) Hold the egg very gently to make sure you don’t crack it!

2. Use a skewer or unfolded paperclip to carefully break up the yolk inside of the egg.

3. Hold a drinking straw over the smaller hole and blow through the opposite end of the straw. The pressure from the air moving through the straw will push the egg contents out into the bowl.

4. Run a little water inside the egg and shake it out. Use the straw again to blow out any remaining water.

5. Place the egg shell in a glass and add enough vinegar to cover the egg. Using your fingers or a pair of tongs, gently hold the egg under the liquid until the air escapes and most of the egg shell stays below the surface (this may take several minutes).

6. Leave the egg in the vinegar for several days until the shell begins to break down (can take up to 10 days).

7. When the shell has started to break away, you will see a flexible egg shaped layer inside—this is the egg membrane. Once the egg shell has completely dissolved, remove the membrane from the glass of vinegar.

8. Rinse the membrane in water and gently squeeze it to remove the water from inside. Pat it dry with a paper towel.

9. Toss the egg membrane back and forth between your hands like a ball. It might take some patience, but you should start to see parts of the membrane filling with air. Continue tossing until the whole thing has inflated light a balloon. (You can slowly and gently pull the sides apart to separate them enough to allow air in if you need to.)

10. Once it has inflated, sprinkle a little baby powder all over the outside. Try to get some powder inside as well as it will prevent the sides from sticking together and help the egg inflate more easily next time.

11. Set the powder-coated inflated egg on the palm of your hand and press the air out with your fingers. Fold the egg in half several times and pinch it slightly so it stays folded, then toss it between your hands again and watch it reinflate! This process of folding and tossing can be repeated several times until the egg membrane dries out and won’t inflate.

What Happened:

Vinegar contains an acid (called acetic acid ) that can make certain substances break down more quickly. When something dissolves, it breaks into very tiny pieces and mixes with a liquid. You can easily demonstrate dissolving by placing a sugar cube into a cup of hot water and stirring. The sugar cube disappears as the sugar dissolves into the water. An egg shell is made up of calcium carbonate , which dissolves quite easily in acetic acid (vinegar). The vinegar eventually dissolved the entire shell away, leaving behind a thin, flexible egg-shaped membrane. The membrane is a very special part of an egg—it is what protects a baby chick as it develops inside a fertilized egg. Because its job is to protect a chick as it grows, the membrane is actually quite strong, thanks to the fact that it contains keratin, which is the same protein that makes your hair strong!

Note: we used a brown egg in the photos, which is why there is strange brown stuff floating in the glass of vinegar. White and brown eggs will both work for this experiment.

Floating Egg

• two raw eggs
• two glasses or jars (similar size and shape)

1. Fill each glass half full of tap water.

2. Using a spoon, gently set one egg into each glass of water.

3. Add 3 tablespoons of salt to one glass and stir it being careful of the egg. There should still be some salt at the bottom of the glass that won’t dissolve. If not, add another tablespoon of salt. As the salt mixes with the water, the egg should rise higher in the water until part of the egg is above the surface of the salty water! If this doesn’t happen, add more salt a tablespoonful at a time and stir until the egg begins to float.

A normal egg sinks in plain water because the egg is more dense than the water. Density is a measure of how solid something is. All things are made up of tiny particles called molecules. If the molecules inside an object are very close together, the item is solid, or dense. If the molecules are farther away from each other, the object is less dense, or less solid. (An example of a very dense item is a penny. A cork is less dense.) When enough salt is added to water, the density of the water changes and becomes more dense than the egg, causing it to float up towards the surface of the water!

To take this experiment a step further, you can remove the egg from the first glass and use a dropper or a spoon for slowly add the plain water from the first glass on top of the saltwater in the second glass. The key is to add the plain, less dense water slowly enough that it will stay above the saltwater instead of mixing with it. Watch what happens to the egg. Does it float to the top? It should stay right between the two layers of salty and not salty water. Can you explain why? It’s because the egg is less dense than the saltwater, but more dense than the plain water, so it floats between the two!

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16 Best Egg Science Experiments

We’ve compiled a list of safe, egg-cellent and egg-citing egg experiments that can be easily conducted in school or at home.

This assortment of experiments, suitable for learners across all age groups can be done with basic materials, making them perfect for classroom settings. These hands-on, educational experiments will not only enhance your knowledge of biology and chemistry but will also foster a deeper appreciation for the wonder of everyday objects.

Whether you’re a teacher looking for a fun science project or a student looking for a new experiment to try, these fun egg experiments are sure to inspire and educate!

1. Egg in A Bottle

The egg in a bottle experiment is a classic and simple science experiment that can help students understand the concept of air pressure.

This experiment demonstrates how changes in air pressure can cause objects to move, and it can also be used to explore other scientific concepts, such as thermodynamics and gas laws.

Learn More: Egg in a Bottle

2. Crack the Egg Underwater

The crack the egg underwater experiment is a simple and fun way to teach students about pressure and material properties.

Since the egg is submerged in water, it doesn’t break. This experiment can help students understand the concept of pressure and how it can affect materials.

3. Make an Egg Float

This experiment can teach students about the concept of density and how it relates to buoyancy. It can also be used to discuss how different materials have different densities, which can affect their behavior in water.

Learn more: How to Make an Egg Float

4. Glowing Egg

The glowing egg experiment is a fun and unique way to teach students about chemical reactions and the properties of light. The glowing egg experiment is a fun and educational way for students to learn about science and can inspire their curiosity about the world around them.

5. Dissolving, Expanding, Bouncing Egg

The Dissolving, Expanding, Bouncing Egg experiment is a fun and educational experiment that allows students to explore how materials can change when they are exposed to different substances.

Learn more: Dissolving, Expanding, Bouncing Egg

6. Make a Rubber Egg

This experiment can teach students about chemical reactions and how they can alter the properties of materials. The rubber egg experiment is a fun and engaging way for students to learn about science and can help them develop their experimental skills and scientific understanding.

7. Silver Egg

The Silver Egg experiment shows the chemical reaction between vinegar and an eggshell in an easy fun way.

This experiment is an excellent approach to teach children or students to basic chemical ideas and to stimulate scientific interest and investigation.

8. Egg Strength Experiment

One of the most popular eggshell strength experiments involves testing the load-bearing capacity of eggshells by applying weight to them until they crack.

This experiment is a great way to learn about the structure of eggshells and the factors that can affect their strength

Learn more: Egg Strength Experiment

9. Egg Balancing Experiment

Try to balance an egg on its end in this easy experiment. This is an excellent way to encourage children to think creatively and try out various strategies.

10. Egg Tower

The egg tower experiment is a fun and creative activity that challenges you to design and build a tower out of eggshells.

This experiment is not only a great way to test your creativity and problem-solving skills, but it also provides an opportunity to learn about the structural properties of eggshells and how they can be used to create stable and durable structures.

11. Naked Egg

The naked egg and vinegar experiment is a unique and exciting scientific experiment that involves putting the egg in a jar and observing how it reacts to being soaked in vinegar.

12. Egg Drop

The egg drop experiment is a classic science experiment that challenges you to design and build a contraption that can protect an egg from breaking when dropped from a height.

13. Egg Geodes- Crystal Growing Science

The Egg Geodes – Crystal Growing Science experiment is a fun and educational experiment that allows you to create beautiful crystal “geodes” inside real eggshells.

Learn more: Egg Geodes- Crystal Growing Science

14. Eggshell Planters

The egg planters experiment is a unique and creative way to repurpose eggshells and create a mini garden. This experiment involves planting small seeds inside the eggshells and watching as they grow and develop into plants.

It’s a fun and engaging activity that provides an opportunity to learn about gardening, plant growth, and sustainability.

15. Eggshell Mosaic

The egg mosaic experiment is a fun and creative way to use eggshells to make a colorful and unique piece of art. This experiment involves breaking the eggshells into small pieces and arranging them into a mosaic pattern on a piece of paper or canvas.

16. Tooth Decay with Eggshells

This experiment will look at the effects of various beverages on our teeth. This can be done by using hard-boiled eggs, which contain calcium and other comparable chemical components.

Similar Posts:

• 68 Best Chemistry Experiments: Learn About Chemical Reactions
• 37 Water Science Experiments: Fun & Easy
• Top 100 Fine Motor Skills Activities for Toddlers and Preschoolers

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Bouncy Egg Science Experiment

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This Bouncy Egg Science Experiment is one that will amaze both kids and adults! Wait until you see how easy it is to turn a raw egg into a bouncing, rubber-like egg using household supplies!

Find more Vinegar Experiments here!

The science behind how to make a bouncy egg is almost as fascinating and fun as playing with and bouncing the egg around!

Table of Contents

Supplies Needed:

• 1 Raw Egg (you can use more if you want)
• 1 Tall Clear Cup
• White Vinegar

How to Do The Bouncing Egg Experiment

• Place a raw egg inside a clear cup.
• Pour enough vinegar into the cup to cover the egg all the way.
• Place a spoon or other heavy object on top of the egg to keep it from floating.
• Let the egg soak in the vinegar for 2 days.
• Gently wash the egg off under cold water.
• Lightly bounce the egg on the counter and see how high you can bounce it before it pops!

Step 1: Set a Raw Egg Inside a Cup

Let’s get started with this super cool science experiment by gently placing a raw egg into a glass or plastic cup. For the best results, use a clear cup so that you can witness the science happening inside the cup!

Be very careful placing the egg into the cup to prevent the shell from cracking or breaking.

We actually decided to use a white egg and a brown egg for this experiment to compare the differences. It was neat to see how they both resulted in bouncy eggs, but they did look slightly different.

Step 2: Add Some White Vinegar Into the Cup

Now pour some white vinegar into the cup. You want to add a generous amount of vinegar to the point that the egg is completely covered in vinegar.

It’s even a good idea to pour enough vinegar to a level about an inch above the top of the egg. This will make sure the egg stays submerged during the waiting process.

Step 3: Put a Spoon on Top of the Egg to Keep it Sunk

After you have covered the egg with vinegar inside the cup, grab a large spoon or something small and heavy to place on top of the egg in the cup.

This will prevent the egg from floating to the top of the vinegar and will play an important role in making sure you get a really good bouncing egg!

If you want to add a glowing twist to this bouncy egg experiment, stop at this step and follow the rest of the steps in this Glowing Egg Experiment , or keep on going to make your incredible bouncy eggs!

Step 4: Wait Patiently For 2 Days While The Egg Soaks in Vinegar

This next step is definitely the hardest part of this bouncy egg science experiment, but it is totally worth the wait!

Once you have secured the egg in the cup of vinegar, set it in a place that is safe from curious children and pets and wait for two days for the vinegar to work its magic on the egg.

It’s a good idea to periodically check on the egg and make sure the spoon hasn’t shifted and that the egg is still completely submerged in the vinegar.

Also, try to rotate the egg so that the same part of the egg is not touching the side of the cup.

You will notice little tiny bubbles forming on the shell of the egg and eventually the egg will start to become almost transparent as the vinegar dissolves the shell and leaves the membrane intact on the egg.

If you decided to use two eggs like we did (a white egg and a brown egg) then this is a fun step to compare the differences now that the shells have dissolved.

From our experience, the brown shelled egg still had a darker tint to it when the shell dissolved, but it was actually more transparent and easier to see the yoke inside than the white egg.

The white shelled egg left a bit of white residue on the membrane that made it a little bit harder to see through the flexible and transparent membrane.

Step 5: Wash The Egg With Water

Now that you have patiently watched and waited for your egg to transform from a hard-shelled egg to a rubber-like bouncy ball for two days, give it a good rinse in some water!

As you gently pull the egg out of the vinegar it will feel a little bit slimy and squishy. Rinse it off with water to get some of the leftover residue from the dissolved shell to come off the membrane.

You might want to use your fingers to gently rub the slimy residue off while running the egg under the water. When the egg is cleaned it should feel rubbery and bouncy, but won’t be gross and slimy anymore!

Step 6: Play With Your New Bouncy Egg

Okay, you have earned your chance to play with your new bouncy egg! Just make sure you have any items you care about cleared off the counter and begin bouncing and squeezing your egg!

You can even challenge your friends to see who can drop their egg from the highest height without it bursting open!

You will soon discover that although the egg is bouncy and flexible, it is still fragile enough to burst if you bounce it too hard!

I think I was lucky enough to bounce mine from about 6 inches off the countertop before it burst and left a sticky egg mess on the table.

Science Behind the Bouncing Egg Experiment

The magical science behind turning a raw egg into a bouncing egg is thanks to the reaction of the vinegar with the calcium carbonate that the egg shell is made of.

The calcium carbonate of the egg shell reacts with the vinegar in a very similar way that baking soda reacts to vinegar, but instead of an explosive reaction, we see a very slow reaction as tiny bubbles form on the egg shell.

If you are looking for the more explosive version of the classic baking soda and vinegar reaction check out this Baking Soda and Vinegar Balloon Experiment , but for now let’s get back to how to make a bouncy egg!

The carbon dioxide in the egg shell is released in the reaction with the vinegar and this is what creates the little tiny bubbles all over the surface of the egg shell.

After a couple of days in the vinegar, the carbon has all been released from the egg shell and it has caused the egg shell to be weakened and dissolved into the vinegar.

The thin membrane between the shell and the actual white and yoke of the egg remains intact and keeps the form of the egg together.

The membrane allows the vinegar to pass into it, but not out of the membrane and that is why the egg nearly doubled in size as well as became very squishy after sitting in vinegar for 48 hours.

So without the hard shell on the outside, the flexible membrane is exposed and gives the egg the ability to bounce and feel like rubber…until it is bounced too hard and it pops!

PIN THIS EXPERIMENT FOR LATER

More Fun Science Experiments For Kids:

• Balloon and Glass Experiment
• Color Changing Milk Experiment
• How to Make Instant Snow

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Egg in Vinegar Experiment – Make a Rubber Egg

The egg in vinegar experiment is a fun way of learning about egg structure, chemical reactions, osmosis, and the scientific method . It’s a safe and non-toxic project, so it’s perfect for young investigators. Other names for the egg in vinegar experiment are the naked egg, rubber egg, or bouncy egg. The “naked” part is easy to understand, because you’re removing the shell from the egg using chemistry. The “rubber” or “bouncy” description implies the egg bounces rather than breaks. Does it work? You be the judge!

The Chemistry of the Egg in Vinegar Experiment

Vinegar contains acetic acid (CH 3 COOH), which is a weak acid . Egg shells are calcium carbonate (CaCO 3 ). Acetic acid reacts with calcium carbonate, making calcium acetate and carbon dioxide. Here is the balanced chemical equation for the reaction:

2 CH 3 COOH(aq) + CaCO 3 (s) → Ca(C 2 H 3 O 2 ) 2 (aq) + H 2 O(l) + CO 2 (g)

The calcium acetate dissolves in water, while the carbon dioxide is a gas and forms bubbles. So, the egg shell dissolves and bubbles away, leaving a naked egg.

What You Do

All you need for this project is an egg, vinegar, and a cup:

• Cup large enough for the egg
• Food coloring (optional)

Use either a raw egg or hard-boiled egg. The advantage of using a raw egg is that you can see into the inside of the egg when you are done. The advantage of using a hard-boiled egg is that it bounces after pickling in the vinegar. The raw egg bounces a bit too, but if you use too much force it breaks open and makes a mess.

• Place the egg in a cup.
• Pour vinegar over the egg until it is just covered. It’s okay if the egg floats a bit. If you like, add a few drops of food coloring. After about 15 minutes, observe the bubbles forming around the egg. The bubbles are carbon dioxide gas. They form from the chemical reaction between the acetic acid in the vinegar and the calcium carbonate of the egg shell. You may also feel that the cup is slightly warm. The reaction is exothermic, meaning it gives off heat. The bubbles and temperature change are two signs of a chemical change .
• Wait a day. Also note that the liquid becomes cloudy or scummy. This is the dissolving egg shell.
• If you remove the egg after 1 day, use a spoon. Otherwise, a raw egg easily ruptures. At this point, if you remove the egg, you can easily rinse away any remaining shell. But, you get better results if you pour off the liquid and add fresh vinegar. This is especially true if you want a rubber egg or bouncy egg. Wait another day or two, giving the vinegar time to get all the way into the egg.
• Remove the egg and rinse it off using water.

Why Rotten Eggs Float in Water

Learn the scientific reason why bad eggs float in water, while good eggs sink.

Science Experiments to Try

Now that you have a rubber egg, what do you do with it?

• Examine the internal structure of the egg. This only works if you started with a raw egg and not a hard-boiled one. Identify the egg membrane, yolk, egg white (albumin), and chalaza.
• Compare the egg without its shell to a normal egg. Notice that the egg soaked in vinegar is slightly larger than the egg with its shell. Why is this? The reason is because water entered the rubber egg via osmosis . The concentration of salts, proteins, and other molecules inside the egg is greater than the concentration in the cup. The egg membrane is semipermeable. It allows the movement of water, but not larger molecules. So, the egg swells with water to try to dilute the inside of the egg so it has the same concentration and outside of the egg. Experiment : Predict what happens if you soak the rubber egg in corn syrup, salt water, or sugar water. Compare the size of this egg with a normal egg and a rubber egg. Corn syrup, salt water, or sugar water shrink the egg because the liquid is more concentrated the interior of the egg. Here, water leaves the egg via osmosis.
• Try bouncing the egg. In addition to dissolving the egg shell, vinegar also pickles the egg. It changes the conformation of protein molecules in the egg white. Because vinegar has a low pH, it also helps preserve the egg. Experiment : Compare how well a rubber egg bounces depending on whether you started with a raw egg or hard-boiled egg.

Can You Eat the Egg?

Eating an egg after soaking it in vinegar is not a great plan. First, it won’t taste great. Second, it could make you sick. If you must eat your experiment, soak a hard-boiled egg in vinegar in the refrigerator for a few days.

Does the Egg in Vinegar Smell Like Rotten Eggs?

Mostly, the egg comes out of this project smelling like vinegar. Vinegar pickles the egg, which preserves it. But, once you remove the egg from vinegar it starts decomposing. After enough time, if you break the egg, it will stink. The odor comes from hydrogen sulfide gas, which is a product of the decomposition reactions in the egg.

Of course, if you start the project with a rotten egg, all bets are off. Rupturing the membrane releases any trapped gases. Bounce these egg with care!

Related Posts

How to Make a Folding Egg

An extension of the classic naked egg experiment.

Print this Experiment

Just imagine the look on your friends’ faces when you show them an egg and then proceed to fold it in half several times until it forms a small white ball! Wait, it gets better. Just bounce the “folded egg” between your hands and the egg reappears!

Experiment Videos

Here's What You'll Need

Pin or a thumb tack, let's try it.

The first step is the trickiest and requires a little practice. You’ll need to blow out the inside of the egg without causing too much visible damage. With the help of an adult, use a sharp pin, a thumbtack, or the tip of a sharp knife to poke a small hole in both ends of the egg. You can also use a small drill to make the holes in the egg. The hole should be about   inch in diameter. Don’t be frustrated if you crack a few eggs before you get the hang of it.

The next step is to scramble the inside of the egg in order to break the yellow yolk. The best way to break the yolk is to poke a toothpick or something similar (like a plastic coffee stirrer) through the hole and to poke around carefully inside the egg.

Once the yolk is broken and the egg is “scrambled,” it’s time to blow all of the liquid out of the egg. One method is to clean off one end of the egg with a moist towelette, cover the hole with your mouth, and blow the egg liquid out of the other hole. Of course, it’s best to hold the egg over the sink as you’re doing this. People who are concerned about using their mouths may choose not to try the activity.

Place the hollow egg in a tall glass or jar and cover the egg with vinegar. You want the egg to be completely submerged in the vinegar, which means that you may need to place something like a large spoon on top of the egg to push it down. You can also try filling the inside of the egg with vinegar to weigh it down.

Leave the egg in the vinegar for a full 24 hours.

Change the vinegar on the second day. Carefully pour the old vinegar down the drain and cover the egg with fresh vinegar. Place the glass with the vinegar and egg in a safe place for up to 10 days or until all of the shell has dissolved. Some eggshells will take longer to dissolve than others because every egg is unique. For the first few days, bubbles of carbon dioxide (CO 2 ) gas will form on the shell. The vinegar is dissolving the calcium carbonate in the shell and producing bubbles of CO 2 at the same time. When the bubbles stop forming, it’s a good indication that the eggshell has completely dissolved.

Once the bubbles have stopped forming (again, this could take up to 10 days so be patient!) pour off the vinegar and carefully rinse the egg membrane with water.

Carefully squeeze out all of the water from inside the egg membrane. Gently blow a little air into one end of the egg and the egg will puff up. Hey, it looks like a real egg! Slowly squeeze the egg in your hand and it will look like you crushed the egg. Carefully toss and bounce the “folded egg” in your hands to magically restore its shape.

There’s both an art and science to making a good folding egg. It just takes practice and patience until you get a membrane that really works. The more you toss the membrane between your hands, the more the water evaporates from the membrane, air gets pushed into the membrane, and it begins to take on the shape of a real egg.

How Does It Work

As you already know from the Naked Egg experiment, the acetic acid in the vinegar breaks down the calcium carbonate in the eggshell, and the bubbles that form on the surface of the egg are CO 2 . Eventually the hard shell of the egg disappears entirely and all that remains is the egg membrane. Because you have already blown out the contents of the egg, the membrane is just full of air. You can fold it up and the air will sneak out the tiny hole in the membrane that you used to blow the yolk out of the egg. The membrane will compress down into practically nothing. As you gently toss around and bounce the “folded egg” on your hand, the air will reenter the membrane, expanding back into its original shape and volume.

Take It Further

Dust the almost dry egg membrane with some baby powder (sometimes called talcum powder). Try to get some of the powder inside the egg as well. The powder helps keep the egg membrane from drying out and cracking, and it makes the egg look even more real.

Safety Information

WARNING! IMPORTANT SAFETY RULES Always wash your hands well with soap and water after handling raw eggs. Some raw eggs contain salmonella bacteria that can make you really sick!

Related Experiments

Growing and Shrinking Egg

We’ve found a method to take our famous Naked Egg experiment to a new level. By dropping your Naked Eggs into Karo corn syrup or […]

Egg Drop Inertia Challenge

The egg drop is one of my all-time favorite science demonstrations. It’s a combination of strategy, skill, and just a little luck. The goal is […]

Walking on Eggs

The phrase “walking on eggshells” is an idiom that is often used to describe a situation in which people must tread lightly around a sensitive […]

This experiment answers the age-old question, “Which came first, the rubber egg or the rubber chicken?” It’s easy to make a rubber, or “naked,” egg […]

Browse more experiments by concept:

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10 Egg Experiments You Will Want To Try

Eggs aren’t just yummy, they make great science too! There are tons of fun egg experiments out there that use raw eggs or just the egg shells. We think these Egg STEM projects and egg experiments are perfect for Easter, but really a little egg science is perfect anytime of the year. So grab a dozen eggs and get started!

10 Best Egg Science Experiments For Kids

Whether you use the whole raw egg and make it bounce or send one down a race track in a LEGO car or use just the shell to grow crystals or plant peas , these egg experiments are fun for kids and make great family activities too! Science and STEM experiments are perfect all year round!

Check out even more ideas for egg STEM activities for preschoolers!

How Strong Is An Egg?

Test the strength of an eggshell with different household objects and uncooked eggs. This makes a great egg science fair project idea too!

Naked Egg Experiment

Can an egg really go naked? Find out how to make a rubber egg or bouncy egg with this fun egg experiment. All you need is some vinegar!

Make Crystal Eggshells

Discover how to grow crystals with borax and a few empty eggshells for an easy egg experiment! Here is another way to do it, eggshell geodes .

Egg Drop Challenge

We have this classic egg experiment simple enough for even preschoolers. Investigate how you can drop an egg without it breaking using household materials.

Grow Seeds In Eggshells

One of our favorite spring activities, reuse your egg shells and learn about the stages of seed growth as you grow seeds in them.

Salt Water Density Experiment

Do eggs float or sink in saltwater? Check out this simple to set up density experiment.

Egg In A Bottle

Can an egg slip into a bottle without you even touching it? Find out you can get an egg into a bottle as we guide you through the steps, explain the science stuff in simple terms and even give you tips to turn it into an egg-cellent science project!

Marbled Eggs

Dyeing hard boiled eggs with oil and vinegar combines simple science with a fun Easter activity. Learn how to create these cool galaxy theme Easter eggs.

Make An Egg Catapult

How many ways can you launch an egg? Have fun building your own egg catapult with these simple egg launcher ideas.

Turn It Into An Egg Science Fair Project

Science projects are an excellent tool for older kiddos to show what they know about science! Plus, they can be used in all sorts of environments, including classrooms and groups.

Kids can take everything they have learned about using the scientific method , stating a hypothesis, choosing variables , making observations and analyzing and presenting data.

Want to turn one of these experiments into an awesome science fair project? Check out these helpful resources.

• Science Project Tips From A Teacher
• Science Fair Board Ideas
• Easy Science Fair Projects

Get your free printable Easter STEM cards!

Printable Easter Project Pack

• 20+ Easter science activities and STEM projects  kids that are easy to set up and fit into the time you have available even if it’s limited!
• Printable Easter theme STEM activities  that are simple but engaging for home or classroom. Perfect for K-2 and beyond but easily adaptable to many skill levels.
• Dive into simple background science explanations to share with kids while they explore hands-on and playful experiments, projects, and activities such as Easter oobleck, erupting eggs, regrowing lettuce, and more!
• Engaging Easter STEM activities pack with theme activities, journal pages, and design process steps! Learn about the design process and think like an engineer while you design and build a better Easter basket and more!
• Easy to gather supplies  makes these STEM activities ideal when you have limited resources available. Specialty activities include a catapult and balloon rocket challenge pack with log sheets!
• Additional STEM activities : Include the great Easter egg tower, spaghetti, marshmallow challenge Easter theme, brick building ideas, puzzles, and screen-free coding activities.

INCLUDES: 

• Easter STEM Pack
• PEEPS Theme STEM Pack
• Easter Slime Science Pack

Subscribe to receive a free 5-Day STEM Challenge Guide

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Awesome Egg Experiments for Kids

March 19, 2023 By Emma Vanstone 12 Comments

Easter is just around the corner, so I’ve put together a collection of egg experiments perfect for this time of year. Eggs are great for experiments as they are inexpensive, easily available and very versatile. We try not to waste food at Science Sparks, but for most of these ideas, you can still eat the actual egg. However, be careful if you have a child with allergies.

Don’t forget to check out my ever-growing selection of printable science experiments too!

Egg Experiments for Kids

Egg drop experiment.

My Humpty Dumpty themed egg drop experiment is great fun. We used sealable sandwich bags filled with different materials to put the egg inside, but another way to do it is to make a parachute or create a container for the egg and drop that.

Unbreakable Egg Experiment

Find out how to make an unbreakable egg . All you need is an egg, and some cling film. We’re sure you’ll be surprised at how strong an egg actually is!

Egg Experiments with Vinegar

Find out How to make an egg shell disappear ! This is like magic! Watch the shell disappear before your eyes. Just be careful not to break the membrane like we did.

Once you’ve dissolved the shell with vinegar, you can make the egg bounce ! Be warned, it might break!

How to shrink an egg

Make an egg shrink and then expand, but first, you’ll have to remove the shell to expose the delicate membrane. This is a brilliant visual way to learn about osmosis !

How strong is an eggshell?

Do you think an eggshell is strong or weak? This activity uses eggshells to make a bridge that books can be piled on top of. The shells might be stronger than you think!

Egg in a Bottle

Find out how to force an egg into a small bottle or jar. Watch as the egg drops into the jar like magic. This clever activity works because of differences in air pressure.

Meringue Experiments

Find out what happens when you whisk egg white and why. This one is a bit messy but lots of fun and very yummy!

Once you’ve perfected your meringue skills, have a go at making a Baked Alaska. This clever dessert allows you to put ice cream in the oven without it melting .

The image below is taken from Snackable Science

Make an Egg Float

Do you know how to make an egg float and We don’t mean by letting it go bad!

Eggs as Teeth

Did you know eggs are great for learning about teeth as the shell is made from a similar material? Try soaking eggs in vinegar, coffee or tea to discover what happens.

Egg Vehicles

Create a vehicle to protect an egg in a collision . You could use LEGO, K’Nex or any other materials you like.

Egg Experiments eBook

My new egg experiments eBook contains five brilliant egg investigations that are easy to follow and also great fun.

More egg experiments

Find out how to tell if an egg is boiled or not by spinning it.

Can you think of any more Egg Experiments for us?

If you’ve got an egg decorating competition coming up, these easy decorated eggs might be helpful, too!

Last Updated on April 30, 2024 by Emma Vanstone

Safety Notice

Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.

These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.

Reader Interactions

February 16, 2013 at 9:47 pm

The egg is only recognizable from its shape without the shell there. Some brilliant ideas here.

February 24, 2013 at 1:16 pm

We used to fry an egg in class to show the children the change of state from liquid to solid with the addition of heat. Can you believe that most of them had never seen a egg frying so it was a real novelty (they were 11!!).

February 24, 2013 at 2:39 pm

These look like fun egg experiments. We have done a few of them but not all. Thanks for sharing.

February 27, 2013 at 6:17 am

Some of these I’ve been wanting to do for awhile, but some are new to me…great ideas all! Pinning to my Preschool Science board to try with my kiddo soon!

February 28, 2013 at 12:44 pm

Ok, these ideas are just TOO COOL!!! I can’t wait to try these with my own kiddos! Thanks so much for sharing over at Sun Scholars. I am featuring this post at this week’s party… YIPEE!!! AND… it’s been pinned to my Best Of board on Pinterest, and sharing on Facebook later this morning. Love what you are doing here at Science Sparks! xoxoxo

March 05, 2013 at 4:34 am

We just did one of the egg-periments! We did the bioled egg on a bottle and it got sucked right in! Thanks for sharing. we cant wait to do more! -Reshama

March 10, 2013 at 9:40 pm

One of my favorite experiments as a kid was dropping an egg from a high height and trying to not make it break.

April 23, 2013 at 3:56 am

Thanks for sharing!! I was not aware of all the neat things you can do with an egg… I know my students will love these!!

March 02, 2015 at 9:41 pm

How does changing water temperature affect the buoyancy of an egg?

August 29, 2018 at 8:32 am

After learning a little bit about what’s inside that egg

March 21, 2015 at 4:24 pm

A la vez, estos signos tienden a tener avatares emocionales constantes, aunque, en el caso de Escorpio, es el que mejor los sabe esconder.

November 01, 2015 at 11:50 pm

We did cells with jello please do this project now and coment below thank-you

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The Chocolate Muffin Tree

Growing a Creative Life with kids of all ages...

• Sculpture/Collage
• Printmaking/Drawing

Tuesday, March 20, 2012

The transparent and bouncy egg experiment.

59 comments:

This is just incredible - love it!! I will definitely be giving this a try with the kiddos. Thank you for sharing, I am always on the look out for new ideas!

Thanks Janice, I've never done this as a child so it was AMAZING to me as an adult! Hope you enjoy and let me know if you have any questions.

Im sorry, but adding vinegar to an egg will not remove the shell. I make pickled eggs this way and I let them sit for two weeks and I still have to take the shell off...

Well this has been tested many times i even tested it in science class as a 5th grader and it worked

I saw your website and was amazed eggs can do that so me and my friends are doing that as our 5th grade science project I think we will get an A+ !

this is the way you can teach kids about diffusion or osmosis. After dissolving the egg in vinegar put some in corn syrup and watch what happens! It will show water/vinegar moving out of the egg.

Yes this does work and you are right,,give it a little tap but don't "bounce" it will burst.

Future bounce-balls should be like this! :)

exept you have to wear a mask

I have done this for years and the children are fascinated with the results!

That is great that you have done this with children. YOur children are so fortunate to have this experience to open up their minds!

boys or girls?

oooh your eggs look great! We love eggs on Science Sparks. xx

Thanks Emma. I'm so amazed at how may things you can do with eggs. There are so many awesome activities.

We did this experiment last year and it was a lot of fun. The egg will bounce a little bit if you do it gently, but we had the same result as Miss C held the egg as high as she could and dropped it into a bowl! SPLAT!

I had no idea the egg would break so it was a real eye opener. I would recommend to do more than one raw egg just so everyone has a chance to test the bounciness and strength of their eggs.

What fun experiments with eggs! I have never done either of them, but think we will have to give them a try some time this next month since eggs will be in such full supply in our home.

Same here...they are new to me. You'll learn a lot too.

Hi. http://carousel-gr.blogspot.com/ :)

If you take a transparent egg and put it in corn syrup, it will shrink back down and the membrane will get a little wrinkly. The water transfers through the membrane back out and into the corn syrup. And you can put it back in water again after that and it'll swell back up. And then you can dance around the kitchen singing "I have a fat egg" and end up with egg guts all over the floor and your foot and ankle. I mean, I imagine you could do that. ;)

This made me giggle :) I want to do the fat egg dance.. um, I mean, I'm sure my kiddos would love it ;)

This expirement is so COOL. My friends are impressed and think i could be the FATHER OF SCIENCE.

Thank you for sharing these experiments, Melissa, the transparent egg is fascinating!

Sure Pinkie. It is an amazing experiment!

This looks like such fun! We will need to try it.

Hope you get around to trying it!It is fabulous!

We are doing this with the raw egg in my first grade class room. One of my students told me about the hard-boiled egg and how it makes a bouncy ball. I think I will leave that one up to the parents :) The kids have loved watching the shell disappear!!

It is truly an amazing experiment! Glad your students have enjoyed it so far.

Oh my gosh, Melissa, you tell a great story! So, the main difference is that you changed the vinegar the second day? That's amazing. N will love to try this, I'm sure!

Thanks Rachelle. I was worried it might be little long winded of a story. Yes, that is all that is different and every idea tells something slightly different. This experiment is right up your alley!

We did an 'eggsperiment' that included leaving one of our hard boiled eggs in a vinegar mixture for 5 days, the kids loved how squishy and bouncy it was. We also soaked eggs in a few other liquid concoctions and used it to teach dental health: http://fitkidsclub.blogspot.com/2012/02/clubhouse-teeth-part-2.html We love learning, experimenting, and exploring with eggs! I love how you added color to the vinegar. We plan on trying all of the egg week fun activities at the Clubhouse Classroom soon!! Thanks :)

So Awesome that you love doing all these egg experiments. I never realized until recently that there were so many experiments with eggs! Wish I would have had these experiences as a child! Better late than never! Thanks for sharing your link.

If you like working with eggs. See my 'egg in the bottle' experiment at milkywaymetro.com

Thanks for sharing! I'm on my way to check it out right now!

This is definitely on my list of things to do - classic!

So easy and you and your daughter will love it!

That looks awesome I'm soo doing that

Will definitely try this out. This is the newest trick out of the 10 experiments you presented (at least to us!). My little boy loves balls and a bouncy egg sure counts as one. More so he'll be the one to make it! Thanks!

Did you cut the hard boiled egg open? Was there blue on the inside and the outside? I am wondering if the membrane of a cooked egg is as permeable as a non-cooked egg? Thanks!

THis looks cool! Were trying this out out school and were the students!!!!!!!!!!!!!!

Please at least consider buying free range eggs for these experiments. There is astounding cruelty rampant in the egg production industry, but every step helps.

why dont you shut up and let people not worry about stupid stuff

my little sister did this for her science experiment and got an A+ good job!!!

i post to have an A but my stupid science teacher said i post to do something less messing and dirt lol that's what a science fair project post to be dumb teacher but she gave somebody else an A for doing a project on how to make slime he didnt have a purpose ............ i know ya'll think i'm hated but i'm not ..ok i'm hating so

an amazing projectttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt away doing this project

Ansdfghjkl;' '[poiuytr54e3w2qsdfgh

How do I make a egg not brake from high distances to the floor with it being raw WITHOUT USING STRAW OR TAPE

I'm gonna try this out!!!!!

So, I teach 2nd grade science and wanted to do this with them. Does anyone think this would be too advanced for them, and if not, what exactly could I explain to them that would help them learn something?

its fun i should know im in the 5th graid and i have horrable spelling

Can you tell me things such as what would be the independent variable, dependent, constants and your hypothesis?

this is supposed to be for a fun science project so i hope it turns out good! (:

my mom keeps on harassing me about this project. :~(

plus this is the mom guy I think this is a great project too.

this is gonna be a fun science fair project

Wow, love this activity. My daughter loves bouncy and stretchy things. This will be right up her street. Thank you for sharing

It's nice, i made one but it really stinks :(

Comments are always appreciated---Thank you! Thank you!

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Nano Egg Drop With Oobleck

Oobleck is one of many materials called non-Newtonian fluids. Most fluids move faster when they are pushed harder, but Oobleck (and other non-Newtonian fluids) moves slower when more force or pressure is applied. When you slowly stir the Oobleck it behaves like a liquid. The same force applied quickly makes it act more like a solid.

In this activity, kids will learn about non-Newtonian fluids and make Oobleck! Using the Oobleck that they create, children will test out their non-Newtonian fluid with an egg drop.

Kids will be exploring: Can Oobleck protect an egg? Is it a gooey liquid or a strong solid? Note: You’ll be using plastic bags to collect the eggs if they break – so that means you can enjoy scrambled eggs after your experiment!

First, let’s find out all about this goo that can be a solid and a liquid at the same time, and then follow the steps below to make it yourself!

Supplies You’ll Need:

• Plastic Bowl
• Measuring Cup
• Mixing Spoon
• Plastic Bags (2 large, 1 small)
• 2 Uncooked Eggs
• Plastic Tablecloth or Newspapers
• Food Dye (optional)

Instructions:

• Adults – Help your children prepare the Ooze! Mix 1 cup of cornstarch into the plastic bowl.
• If you’re using food dye in this activity, add several drops of food dye to half a cup of water.
• Slowly add the water to the cornstarch and mix with a spoon. Note: when making the ooze, you may need to adjust the amount of water. The ooze solution should harden when pressure is applied but otherwise will flow like a liquid.
• Kids, play with the Oobleck! What do you notice about this funny material? Try tapping or squeezing the Oobleck! Is it a solid or a liquid? If you get messy with the Oobleck, you should dunk your hands into a tub of water before washing in a sink.

Note: Empty all Oobleck directly into the trashcan or compost, NOT the sink. Oobleck can clog a sink if too much is put down the drain. If saved for more than a few days Oobleck can begin to smell, so throw it out promptly

Time To Experiment!

• Put one of your eggs into a large plastic bag. Zip it up.
• Pour about half of your Oobleck into the other large plastic bag.
• Place the other egg into the small plastic bag.
• Add the small plastic bag (with the egg) to the large bag that holds the Oobleck and zip it up.
• Hold both large bags about 8 inches over a table.
• Line the eggs up so they are the same height off the table.
• Drop both bags at the same time.

What happens? Do both eggs break?

What Is Happening?

When you quickly apply a lot of pressure to Oobleck, like tapping or squeezing, it firms up like a solid. When no pressure is applied, it flows like a liquid.

When it hits the ground, a quick direct force is applied to the Oobleck. The cornstarch clumps together and hardens like a solid, absorbing the impact and protecting the egg. Then the Oobleck quickly goes back to acting like a liquid!

The characteristics of Oobleck are used when developing Nanotechnology. First, let’s explore just WHAT is Nano. Watch the video below before proceeding.

How Is This Nano?

The way a material behaves on the macroscale is affected by its structure on the nanoscale. Changes to a material’s molecular structure are too small to see directly, but we can sometimes observe corresponding changes in a material’s properties.

Nanotechnology takes advantage of the way things behave differently at the nanoscale to make new products and applications.

Researchers have developed new fabrics made with shear-thickening fluids (STFs) that contain suspended nano-sized particles. This new material displays non-Newtonian behavior similiar to that of Oobleck. The fabrics are used in a variety of technologies, from flexible body armor to protective (and fashionable) winter hats.

Nanotechnology takes advantage of the way things behave differently at the nanoscale to make new products