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Exploding Bags

Exploding bags for science, yep kids love this easy experiment! Our exploding bag experiment is a MUST try and a classic! Find out how a baking soda and vinegar chemical reaction can explode lunch bags. Kids love things that fizz, pop, bang, explode, and erupt. These bursting bags or popping bags do just that! We have tons of simple science experiments you will love to try!

Exploding Lunch Bag

Fun chemistry awaits! What is chemistry? Find out more here . This simple science activity has been on our to-do list for a while now because it’s a classic! Sometimes called the exploding lunch bag , our popping bag activity is the perfect way to excite your kiddos about science! Who doesn’t love something that explodes?

Baking soda and vinegar reactions make for exciting science activities!

Baking soda and vinegar chemical reactions are fascinating, engaging, and easy for everyone to enjoy! Our latest popping bag experiment is perfect for a summer science experiment . You should take this one outdoors because it could get quite messy.

YOU MAY ALSO LIKE: Fizzing Experiments For Kids

How Do You Make A Baking Soda Explosion?

Even the youngest scientist can learn something about the science behind our exploding bags. The chemical reaction between the baking soda and the vinegar creates a gas called carbon dioxide. You can see this in fizzy drinks like our fizzy lemonade.

The carbon dioxide gas then fills up the bag. If there is more gas than the room available in the bag, the bag will burst, pop, or explode. Similar to our baking soda volcano activity. There’s no place for the gas and liquid to go but up and/or out.

The key to really cool exploding bags is getting the right ratio of baking soda to vinegar . This also makes it such a fun science experiment for kids of multiple ages. Older kids can record data, make careful measurements, and re-test. Younger kids will enjoy the playful aspect of it all. 

💡 Read more about the science behind baking soda and vinegar experiments .

Exploding Bag Experiment

💡While you’ve got a bunch of bags out and you’re outside, try the leakproof bag for a different type of chemistry experiment!

• Baking Soda
• Small sandwich bags or Gallon Size Bags 
• Toilet paper
• Tablespoon Measure and 2/3 Cup Measure
• Safety Goggle or Sun Glasses (always be safe)!

Experiment Set Up:

TIP: To get started with your exploding bags science project, you want to create a toilet paper pouch for the baking soda. This slows down the chemical reaction between the vinegar and baking soda. It’s all about the anticipation!

STEP 1. Place a heaped tablespoon of baking soda in the middle of one square of toilet paper.

TIP: You can also set up a control bag ( control variable ) with just the baking soda so that kids can draw conclusions by observing and comparing the two bags.

STEP 2. Bring the corners of the toilet paper together and wind up the top to create a simple pouch.

STEP 3. Add 2/3 cup of vinegar to your plastic bag.

STEP 4. Seal the bag so there is just enough room to slip in the pouch.

STEP 5. Give the bag a little shake and toss on the ground.

Watch and see what happens with your exploding bag. Will it pop, burp, explode?

Our Results

We attempted to follow the instructions from Steve Spangler, but we were not having any luck. We decided to experiment with our exploding lunch bags on our own. What did we need to change?

Experimenting is what science activities are all about!

I am glad we did not have immediate success. The problems our exploding bags had gave my son opportunities to think of solutions. He needed to use his critical thinking skills to brainstorm new ideas.

I love that he wanted to keep trying more of these almost bursting bags. He was excited to see if the next bag would work better or differently. 

With a little assistance from a pool noodle below, he was able to make one of the bags burst!

We did finally have success with our bags. The one below grew and grew until it popped the bottom seam! I wonder what would happen if we added food coloring to the activity.

CHECK OUT: Outdoor Science Experiments

Using The Scientific Method With Kids

The scientific method is a process or method of research. A problem is identified, information about the problem is gathered, a hypothesis or question is formulated from the information, and the hypothesis is tested with an experiment to prove or disprove its validity.

Sounds heavy! What in the world does that mean?!? It means you don’t need to try and solve the world’s biggest science questions! The scientific method is all about studying and learning things right around you, including bursting bags!

Here are three hypotheses kids can use with this experiment to get started: Note that a classic hypothesis is often written as an if-then statement.

Hypothesis #1 : If we combine baking soda and vinegar in a sealed bag, then the bag will inflate with gas because the chemical reaction between the two ingredients produces carbon dioxide gas.

Hypothesis #2: If we vary the amount of baking soda used in each bag while keeping the amount of vinegar constant, then the bags with more baking soda will inflate more because more gas will be produced in the reaction.

Hypothesis #3: If we use different types of acids (e.g., lemon juice, orange juice) instead of vinegar with baking soda in separate bags, then the bags with stronger acids will inflate more because the reaction will release more gas.

As kids develop practices that involve creating, gathering data evaluating, analyzing, and communicating, they can apply these critical thinking skills to any situation.

READ MORE:   The Scientific Method For Kids With Examples

Note:  The use of the   best Science and Engineering Practices   is also relevant to the topic of using the scientific method. Read more and see if it fits your science planning needs.

More Helpful Science Resources

Here are a few resources to help you introduce science more effectively to your kiddos or students and feel confident when presenting materials. You’ll find helpful free printables throughout.

• Best Science Practices (as it relates to the scientific method)
• Variables In Science
• Observation In Science
• Science Vocabulary
• 8 Science Books for Kids
• All About Scientists
• DIY Science Kits
• Science Tools for Kids
• Science Fair Projects for Kids

More Fun Science Experiments To Try

• Erupting Mentos and Coke Reaction
• Elephant Toothpaste
• Egg In Vinegar
• Skittles Experiment
• Growing Borax Crystals
• Saltwater Density Experiment

Printable Science Projects For Kids

If you’re looking to grab all of our printable science projects in one convenient place plus exclusive worksheets and bonuses like a STEAM Project pack, our Science Project Pack is what you need! Over 300+ Pages!

• 90+ classic science activities  with journal pages, supply lists, set up and process, and science information.  NEW! Activity-specific observation pages!
• Best science practices posters  and our original science method process folders for extra alternatives!
• Be a Collector activities pack  introduces kids to the world of making collections through the eyes of a scientist. What will they collect first?
• Know the Words Science vocabulary pack  includes flashcards, crosswords, and word searches that illuminate keywords in the experiments!
• My science journal writing prompts  explore what it means to be a scientist!!
• Bonus STEAM Project Pack:  Art meets science with doable projects!
• Bonus Quick Grab Packs for Biology, Earth Science, Chemistry, and Physics.

One Comment

Thanks for your posts! Just fyi you say to put a heaping tablespoon of vinegar on the toilet paper 😉

Comments are closed.

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Posted on Last updated: June 13, 2022 By: Author Kim

Categories STEM Activities

Exploding Bag Experiment for Kids

Exploding bag experiment for kids.

Ages: Preschool , PreK , Kindergarten Difficulty: Easy Learning: Cause and Effect, Chemical Reactions, STEM

Let’s just cut to the chase. Explosions (safe, no one getting hurt, and nothing getting destroyed) are cool. Even cooler is seeing two items that, on their own, are very safe (and edible!) come together to create an explosion.

So yes, we are going to make an explosion with kids. Don’t worry, it is safer than it sounds. But it is so much fun.

Grab a baggie, we’re doing the exploding bag experiment.

What's In This Post?

Supplies for the Exploding Bag Science Experiment

The science of the exploding bag experiment, the baking soda and vinegar reaction, limiting reagents, additional experiments and activities.

• Exploding Baggie Science Experiments

This is another one of those experiments that are so easy to do, but really draws kids in. And, despite being an explosion of sorts, is safe and is made from materials you already have in your home.

(And if you like this experiment, make sure you check out the Leak-Proof Bag Experiment . Same type of baggie, just add pencils!)

Head to your kitchen, you should find almost everything you need for this science challenge. Here is what to grab.

• Plastic Re-sealable Baggies (like a sandwich baggie)
• Baking Soda
• Tissue or Toilet Paper

How To Make an Exploding Bag

This experiment is pretty simple, and it actually doesn’t make too much of a mess.

Step 1: Take 1/2 cup of vinegar and put it in your re-sealable baggie. Seal up the bag.

Step 2: Take a square of toilet paper or a tissue. If it is more than one-ply, carefully separate the layers and use only one. You will need to work with it carefully, but the thinner the better. Put 3 teaspoons of baking soda in the middle of the tissue, then wrap it up like a little bundle.

Step 3: Unseal one side of the bag. Quickly drop in your bundle and seal the bag. Then place it down. It will start to puff up and eventually pop open!

This is a great experiment to do outside. It is unlikely that your explosion will cause a big mess, but the liquid can leak out once it explodes.

If you don’t want to do this outside, you can use a large bowl or plastic container. You can also do this in your sink or bathtub as another option.

If you want to add some extra science fun, put a few drops of food coloring in with the vinegar step for a colorful exploding sandwich bag.

This, despite being called an explosion, is actually a reasonably safe activity. Avoid getting any of the materials in your eyes. And, despite being food-safe ingredients, I don’t recommend ingesting anything involved with this experiment.

It is a good idea to have your child stand back the first few times until you get a feel for how big your explosion will be. Safety glasses or other eye protection is recommended.

This is pretty simple to clean up. If your bag has burst open at the seal, you can rinse it out and use it again. If it breaks the integrity of the bag you can simply throw the whole thing away.

Any leftover supplies (baking soda or vinegar) can be rinsed down the drain.

You have got to try these fun activities too!

How Does the Bag Explode?

This is a fun activity, but what makes it a STEM activity is if we dive into the explanation of what is happening.

This experiment uses one of my favorite kitchen chemical reactions. It is tried and true and a total classic. Yep, it’s the vinegar and baking soda reaction.

Some might think this reaction is overdone, but I strongly disagree. It is amazing for the toddler, preschool, prek, and kindergarten ages too. Why? It’s simple, safe, and uses easily accessible materials. In addition to that, it works consistently and produces obvious results. These all make this worthwhile.

The short answer for why the bag explodes is that a chemical reaction takes place that creates a gas. This gas fills the bag until the bag explodes.

We can explain a bit more than that though.

We started our experiment with vinegar in our bag. Then we added the baking soda wrapped up in a tissue. The tissue is very thin, so it quickly gets soaked through with the vinegar, enabling the vinegar to come in contact with the baking soda.

When vinegar and baking soda mix there is a chemical reaction. The result of this is carbon dioxide, water, and other dissolved ions.

The carbon dioxide fills the bag until it can’t hold anymore and it pops open! A science explosion!

This experiment is a great way to introduce the concept of limiting reagents with your children.

What is a limiting reagent? Well, first we need to know that reagents are the chemicals we are mixing. In this case, our reagents are baking soda and vinegar.

These reagents react to make products (the carbon dioxide and water), but the reaction can’t continue forever. Eventually, we will run out of one of the reagents. The reagent you run out of first is the limiting reagent .

You can liken it to baking. When you are baking a cake you need a certain amount of sugar, flour, baking powder, etc. But you can’t bake an infinite amount of cakes. Once you run out of flour, you are done baking cakes. That is a limiting reagent.

What Is the Limiting Reagent?

So what is the limiting reagent in this reaction? Well, that is up to you!

Encourage your child to see what happens if they add more vinegar to the reaction. Then try with more baking soda. Does it impact the reaction time at all?

Here is a keyword to note from this experiment.

Limiting Reagent: The limiting reagent in a chemical reaction is the reactant that is totally consumed in the reaction.

This is a fun science activity to try over and over. And we can change it up to explore even more. Here are some additional experiments to try.

• What happens if you add more vinegar and baking soda to the bag? Does it explode faster? Bigger?
• What if you add more of just one ingredient? Try it then switch to more of the other ingredient and see if the results change at all.
• Try using a double layer of tissue. Again, how do the results change from this adjustment?
• What happens if you leave the bag open a little? Does it still explode like when it is closed?
• Try pouring the baking soda directly into the bag. Does the rate of the reaction change at all?
• What happens if you add warm water or cool water to the baggie too?

These are just a few suggestions. Let your child explore and be creative!

Exploding Baggie Science Experiment s

This is a great experiment. It’s exciting, it’s fun, and you are exploding things. Yet it is pretty safe (a huge win for caregivers). There are so many factors you can change up and experiment with. This gives children the chance to really be scientists.

So when are you going to start?

Let’s find your next fun activity!!

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• exploding-sandwich-bag-experiment

The Exploding Sandwich Bag Experiment

Next time you're getting ready to make your lunch, you can dive into a super-fun science experiment! 

This one involves an explosion (only a little one!) and is a great way to learn about chemical reactions too!

What Do I Need?

• White vinegar
• Bicarbonate of soda or baking soda
• Tissue paper
• A sandwich bag

How Do I Do It?

STEP1   - Wrap a couple of teaspoons of bicarbonate of soda up inside a tissue, as shown. (This is just to make it easier to get your sandwich bag closed before your chemical reaction gets started!)

WARNING:   Make sure to do this experiment outside! (or somewhere that you don't mind making a mess!)

STEP2   - Pour some white vinegar into your sandwich bag till there's around a 3cm layer in the bottom of the bag.

STEP3   - Pop your bicarbonate of soda package inside your bag and hold it above the vinegar while you seal it up!

STEP4   - Drop you bicarb down into the vinegar and stand back! Your sandwich bag is getting set to explode! You'll see your bag slowly start to swell up as the pressure builds and then finally...pop!

What’s Going On?

This is all to do with the pressure being caused by the chemical reaction! 

As the bicarbonate of soda and the vinegar mix together they react and carbon dioxide is given off. 

The bag fills with more and more carbon dioxide and soon the pressure will be too much for the bag to take and BOOM! 

You'll get a beautiful little explosion, perfect!

More Fun Please! - Experiment Like A Real Scientist!

• How can you make the bag explode more quickly?
• What happens if you add more vinegar or more bicarbonate of soda?
• What combination produces the biggest explosion?!

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Explosive Lunch Bag for Kids | Fun Science Experiment to do at Home

Science explosions are my son’s favorite type of activity. You may assume that we saw this activity in a science book or the Internet. However, we read about this activity while reading the Weird School book series by Dan Gutman . My son, Cory, loves reading these books. Once he saw we could make a lunch bag explode, he looked at me and said, “We gotta do it!” This is definitely a fun science experiment to do at home.

The great thing about this activity is you most likely have all the ingredients in your home. Below is what we used….

2 Gallon Ziplock Bag (you can use 1 gallon as well)

Food Coloring

Baking Soda

It is best to do this science experiment outside. Also, you should wear old clothes along with science gloves and goggles.

While doing this experiment, your child will learn about how acids (vinegar) and bases (baking soda) react to one another. Vinegar and baking soda combine to make carbon dioxide which is a gas.

Don’t be surprised if your child wants to do this activity again.

In the short video below, we show you how to set up the experiment. The video comes from my son’s YouTube Channel, Corban’s Fun Learning Adventures. Please subscribe if you like what you see.

Try this today! It will be a fun science experiment to do at home!

If you have a child that is into science, check out our shirts for kids.

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The Exploding Lunchbag!

You will need:

•  Scoop 3tsp of baking powder onto the centre of the tissue and then fold   the tissue over to make a small parcel.
• Pour all the vinegar and all the warm water into the lunch bag. Then zip the bag up leaving a big enough gap to fit the tissue in.
• Put the tissue into the mixture, quickly zip the bag up and let the fizzing begin!
• Stand back and wait for the POP!

The science bit…

So, what causes all that fizzing and popping? Mixing the vinegar, the baking powder and the warm water together creates a chemical reaction (fizzzzz) which produces a gas called carbon dioxide. The carbon dioxide takes up a lot of space and the bag begins to expand almost like a balloon being filled with air. If the bag is not big enough? Well, that is your pop!!

Experiment even more…

You may find that on your first go you get a whole lot of fizzing and not a lot of popping. If this is the case try changing the amount of vinegar, water and baking soda. By altering these ingredients you are likely to see a different result. What happens if you use more tissue or no tissue at all? Record all your findings to see if you can work out what creates more of a fizz and more of a pop.

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STEM Newcastle

Science, technology, engineering and maths, #trythistuesday: exploding lunch bag.

Today we are going to make an explosive lunch!

You will need

• One small (sandwich size) zip-lock plastic bag
• Bicarbonate of soda

Do this experiment outside, or at least in the kitchen sink. Put about a quarter of a cup of warm water in the bag with half a cup of vinegar.

Put three teaspoons of the bicarbonate of soda into the middle of the tissue and fold it up into a little parcel.

Partially zip the bag closed but leave a little space to add the bicarbonate of soda parcel in. Put the tissue parcel in the bag and quickly zip the bag completely closed.

Put the bag on the ground and step back. The bag will start to expand and hopefully pop!

The Science

The bicarbonate of soda and the vinegar eventually mix together, the tissue just gives you enough time to get the bag shut. A reaction takes place between the alkaline  bicarbonate of soda and the acidic  vinegar, this is know as an acid-base reaction. The reaction produces carbon dioxide, which begins to fill the bag. After a while the bag can no longer hold any more gas so it pops!

The reactions between acids and alkalis are used lots in real life too. Farmers can treat acidic soil with alkaline lime fertilisers to neutralise the soil and allow plants to grow. It’s also a good way to treat a wasp sting; wasp stings are alkaline so you can treat them by putting vinegar on the sting.

One thought on “ #TryThisTuesday: Exploding Lunch Bag ”

This is AMAZING! I’m doing this for my science fair project!

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TAG: Exploding Lunch Bag

Science bob on the today show.

March 31, 2017 | 0 Comments

Science Bob joins Sheinelle Jones, Dylan Dreyer, and actor Zach Braff on the Today Show for some science experiments. Check out and try the home version of the Exploding Lunch Bag experiment from the video HERE. Science Bob visited the Today Show with John Cena, Tamron Hall, and Al Roker to explore liquid nitrogen, hydrogen […]

Science Experiments, Experiment Videos, and Science Fair Ideas from Science Bob

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Weather Experiment: Exploding lunch bag with Mattawan Consolidated Schools

WEST MICHIGAN — Baking soda and vinegar are everyday products that we have in our households, but they can also be active ingredients in learning how carbon dioxide is formed! Combing baking soda, vinegar, and warm water can help people of all ages learn about our greenhouse gases.

Meteorologist Haleigh Vaughn visited Mr. Ablao and Mrs. Salvatore's 6th-grade science classrooms to illustrate this experiment with students. We're calling this one ... exploding lunch bag! You can watch the video above to see how it went.

Looking to try this at home? Here is what you'll need:

1. Sandwich bag 2. Baking soda 3. Vinegar 4. Warm water 5. Measuring cups or spoon 6. Tissue

Here are the steps:

Step 1: Go outside, to the kitchen sink, or a location where you can easily clean up the spillage Step 2: Open a sandwich bag Step 3: Put 1/4 Cup of warm water into the sandwich bag Step 4: Add 1/2 Cup of vinegar into the sandwich bag Step 5: Take a tissue and place 3 teaspoons of baking soda on it and fold it up Step 6: Zip the sandwich bag closed but leave one corner open enough to fit the tissue full of baking soda in Step 7: Work fast! Drop the tissue with baking soda in the sandwich bag and close the bag Step 8: Sit back and watch the bag slowly expand ... and then explode!

You might be wondering ... what caused the bag to explode and what is happening here? Well, it's a simple chemical reaction happening inside the sandwich bag between the vinegar (our acid) and the baking soda (our base). Combining these two creates carbon dioxide (a gas) to be released. Once the bag can no longer hold the capacity of all ingredients and the gas, it will explode!

Carbon dioxide (CO2) is a greenhouse gas is that occurs naturally and is harmless in small amounts. However, carbon dioxide in large amounts can have a negative effect. The sun naturally heats up our Earth. When the sun sets, heat naturally wants to rise back toward space. Greenhouse gases form to keep the heat from escaping Earth completely. We need greenhouse gases to keep us warm! However, too much of anything is often a bad thing. An excess of greenhouse gases traps heat on Earth, which leads to our Earth overheating and it can be harmful. This is often discussed as global warming.

Excess carbon dioxide (CO2) is often developed in our atmosphere from burning fossil fuels.

Carbon dioxide (CO2) is actually one of the most important greenhouse gases because plants use it to produce carbohydrates during photosynthesis. Since humans and animals depend greatly on plants as food sources, carbon dioxide is a critical piece of our survival.

If you want to see carbon dioxide development in front of your eyes, try the experiment above!

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Science Fun

Exploding Baggie Easy Science Experiment

In this fun and easy science experiment when are going to use a chemical reaction to explode a plastic zip close baggie. This experiment is easy to perform and ends with a satisfying pop!

• Plastic zip close sandwich baggie
• Toilet paper or tissue
• Baking soda
• Measuring cups and spoons

Instructions:

• Find an area outside that can get a little messy.
• Pour ½ cup of vinegar in the zip close baggie and set aside. Make sure the vinegar does not spill out of the baggie.
• Lay out one square of toilet paper.
• Place 1 tablespoon of baking soda in the middle of the square of toilet paper.
• Fold the toilet paper around the baking soda to seal the baking soda inside. 
• Use a piece of tape to secure the bundle.
• Drop the bundle of baking soda into the baggie containing the vinegar.
• Quickly seal the baggie making sure to do so securely, give the baggie a few quick shakes, and step back several feet. 
• Observe what happens.

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How it Works:

The vinegar saturates the toilet tissue and an endothermic chemical reactions begins between the vinegar and baking soda. The chemical reaction releases carbon dioxide and creates pressure inside the baggie. The pressure builds inside the baggie until it explodes with a pop!

Make This A Science Project:

Try different amounts of baking soda and vinegar. Try different sized baggies. Try different temperatures of vinegar. 

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