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Raising Raisins – baking soda investigation
June 10, 2018 By Emma Vanstone 4 Comments
This is a great little science experiment that kids will love!
Dancing Raisins Experiment
What do you think will happen if you put a raisin in a glass of water?
It will sink!
Do you think it’s possible to make raisins rise to the top and jump around?
Find out in this simple baking soda investigation.
What you need:
A pint glass
Raisins or anything else you would like to test.
Bicarbonate of Soda (Baking Soda)
White Vinegar
Instructions
Fill the glass half full with warm water.
Add two heaped teaspoons of baking soda.
Add a few raisins
Put the glass in a tray – it might overflow
Top of with white vinegar
You should see the raisins begin to rise and fall
Why do the raisins dance?
The vinegar and bicarbonate of soda react forming carbon dioxide. The carbon dioxide bubbles collect over the surface of the raisins. As carbon dioxide is lighter than water it rises to the top and takes the raisins with it. As the bubbles pop at the surface the raisins drop again, only to be covered in bubbles again at the bottom until the reaction finishes.
More Investigation Ideas
Can you find the smallest amount of baking soda and vinegar that allows the raisins to dance? Try with just one raisin and then investigate to discover if you need more to make 2 raisins dance.
Can you think of anything else this would work with? You could investigate using other dried fruits and record how well each dances.
We tried with small LEGO pieces and found that they sank when they filled with water and once the reaction started they jumped to the top, but didn’t dance around.
We then tried with small coins, but these didn’t move at all, you can see how all the bubbles of carbon dioxide have gathered on the surface though.
Another idea is to attach something to the raisins and see if they still dance.
Why do baking soda and vinegar react?
If you combine an acid ( vinegar ) and an alkali ( baking soda ) they react together to neutralise each other.
The reaction releases carbon dioxide gas, which is the bubbles you see.
More baking soda experiments for kids
Create a fizzy Monster Tea Party !
This baking soda powered boat is great fun.
Everyone loves a baking soda volcano
Or try some fizzing rocks with baking soda , what would you hide inside?
Last Updated on September 17, 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
June 24, 2012 at 4:27 pm
Such a great experiement! We did this awhile ago on a smaller scale (just using water and letting the raisins sit overnight) and my daughter was amazed that they could float! Just found your site and am off to take a look around! š
May 28, 2014 at 1:57 pm
Just tried this with my 5 year old, he loved it, especially the overflow at the beginning. Great fun, thanks!
July 22, 2017 at 10:50 pm
Did this. Cool!
August 07, 2019 at 4:59 am
Thank you so much! This is my first year teaching 7th grade science and this is the perfect lab intro experiment!
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Playing With Rain
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Dancing Raisins Experiment
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This super fun and easy experiment to do with kids only requires a few simple household ingredients! Kids will love watching raisins magically bounce up and down in a glass of fizzy liquid in this Dancing Raisins Experiment !
Find more Vinegar Experiments here!
The chemical reaction responsible for making these raising dance in water is the same as the classic baking soda and vinegar reaction with a new twist!
Table of Contents
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Supplies Needed:
- Tall Glass or Jar
- Baking Soda
How to Do Dancing Raisins Experiment
- Fill a tall and clear glass halfway with water.
- Add 2 spoonfuls of baking soda and stir until it’s dissolved.
- Dump a handful of raisins into the glass of water and baking soda.
- Pour vinegar into the class and watch as the raisins start dancing around!
Step 1: Pour Some Water Into a Cup
Let’s go ahead and get this fun dancing raisins experiment started by pouring enough water into a clear, tall glass to fill it about halfway full.
You want to cup to be as clean and clear as possible to make sure your dancing raisins will be very visible and easy to watch and enjoy!
Step 2: Mix 2 Tablespoons of Baking Soda into the Water
Now we need to add a little baking soda into our water. Pour about 2 or 3 tablespoons of baking powder into your cup and water.
Stir the baking soda into the water really good until the baking soda is completely dissolved in the water.
You can stop stirring when the water changes from the cloudy, foggy look to becoming clear again (about 20-30 seconds).
Step 3: Drop Some Raisins Into the Mixture
Now its time to add a few raisins into the mixture! This is the part where you and the kids can sneak a little snack if you would like, but be sure to leave a handful of raisins to throw into your experiment!
You will want to drop about 5-10 raisins into your cup of baking soda and water mixture. The amount of raisins you add depends on if you want lots of dancing raisins or if you want the experiment to last a little longer.
The more raisins you add, the less amount of time your reaction will last, but the more eye-popping it will be!
Step 4: Add Some Vinegar to Start the Raisin Dancing Reaction
Hint: You can also switch step 3 and 4 and put the raisins in after the vinegar if you want! Notice that is what we did in the image above compared to the image below.
Either way, it’s time for the fun to begin! Go ahead and pour some vinegar into the baking soda and water mixture.
Add enough vinegar that the liquid is almost all the way to the top in the glass, but leave enough space for the fizzing bubbles of the reaction to not spill and make a big mess!
When the vinegar is added to the mixture, the reaction will create a very fizzy bubbling event inside the glass and the raisins will start dancing up and down inside the glass!
The raisins should continue to rise and fall inside the glass for several minutes before eventually settling back down to the bottom as the baking soda and vinegar reaction responsible for the dance show stops.
Dancing Raisins Conclusion
The secret to making these raisins float, sink, and float again in a dancing rhythm is all thanks to the tiny little carbon dioxide bubbles created from the baking soda and vinegar reacting together.
When the vinegar is poured into the water and baking soda mixture, the reaction releases carbon dioxide (CO2) from the baking soda in the form of tiny little bubbles.
These little gas bubbles attach and accumulate to the surface of the raisins. Eventually enough bubbles connect to the raisins to pull the raisins up to the top of the liquid.
As the raisins hit the surface of the liquid solution, the air bubbles pop and gravity pulls the raisins back to the bottom again.
This process will continue to repeat itself until the vinegar has released all the carbon dioxide from the baking soda. At that point the raisin dance party will come to an end…but you can always do it again!
You can try this experiment using different objects to see if they will dance like the raisins did. We tried it with grapes in this cool Dancing Grapes Experiment and it worked pretty good too!
You can also use sparkling water or any type of carbonated drink to put the grapes or raisins in and they will dance.
We just made our own sparkling water with the water, baking soda, and vinegar mixture since we didn’t have any carbonated beverages at home.
PIN THIS EXPERIMENT FOR LATER
More Fun Experiments for Kids:
- Bottle Thermometer Experiment
- Baking Soda and Vinegar Balloon Experiment
- Spinning Eggshell Experiment
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The Dancing Raisin Experiment
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Raisins may be dehydrated grapes, but when you add a certain liquid to them they become hip-hoppinā dancersāat least, that's how they look.
To demonstrate the principles of density and buoyancy , all you need is a little carbon dioxide gas to get those raisins doing the jitterbug. To create carbon dioxide in the kitchen you can use baking soda and vinegar or with the less messy (and less predictable) clear, carbonated soda.
This is a low-cost project, and the materials you need are easy to find in the grocery store. They include:
- 2 to 3 clear glasses (depending on how many versions of the experiment you want to run at the same time)
- A box of raisins
- Clear, well-carbonated soda (tonic water, club soda, and Sprite all work well)Ā orĀ baking soda, vinegar, and water
Start by asking following question and record the answer on a piece of paper: What do you think happens when you put raisins in soda?
The Dancing Raisins Experiment
Decide whether you want to use soda or baking soda and vinegar to conduct the experiment or if you want to compare what happens in both versions of the experiment.
- Note: For the baking soda and vinegar version of the experiment, youāll need to fill the glass halfway with water. Add 1 tablespoon of baking soda, stirring to make sure it dissolves completely. Add enough vinegar to make the glass about three-quarters full, then proceed to Step 3.
- Put out one clear glass for every different type of soda youāll be testing. Try different brands and flavors; anything goes so long as you can see the raisins. Make sure your soda hasnāt gone flat and then fill each glass to the halfway mark.
- Plop a couple of raisins into each glass. Donāt be alarmed if they sink to the bottom; thatās supposed to happen.
- Turn on some dance music and observe the raisins. Soon they should begin dancing their way to the top of the glass.
Observations and Questions to Ask
- What happened when you first dropped the raisins in the glass?
- Why did they sink?
- Once they started "dancing," did the raisins stay at the top?
- What else did you notice happening to the raisins? Did they look different?
- Do you think the same thing would have happened if you put raisins in water?
- What other objects do you think would "dance" in soda?
Scientific Principles at Work
As you observed the raisins, you should have noticed that they initially sank to the bottom of the glass. Thatās due to their density, which is greater than that of liquid. But because raisins have a rough, dented surface, they are filled with air pockets. These air pockets attract the carbon dioxide gas in the liquid, creating the little bubbles you should have observed on the surface of the raisins.
The carbon dioxide bubbles increase the volume of each raisin without raising itsĀ mass. When the volume increases and the mass does not, the density of the raisins is lowered. The raisins are now less dense than the surrounding fluid, so they rise to the surface.
At the surface, the carbon dioxide bubbles pop and the raisinsā density changes again. Thatās why they sink again. The whole process is repeated, making it look as though the raisins are dancing.
Extend the Learning
Try putting the raisins in a jar that has a replaceable lid or directly into a bottle of soda. What happens to the raisins when you put the lid or cap back on? What happens when you take it back off?
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Science Experiments
Dancing Raisins Science Experiment
Ready to make some raisins dance?? Although you won’t need to buy them dancing shoes, once you give your raisins some soda pop, they’ll start dancing for you with every bubble!
In this easy science experiment, your young scientists will learn about the effects of density and buoyancy. Below you will find a demonstration video, a supply list, and printable instructions. Suitable and fun for all ages.
JUMP TO SECTION: Instructions | Video Tutorial | How it Works
Supplies Needed
- Clear Drinking Glass
- Clear Pop like Sprite or 7Up
Dancing Raisins Science Lab Kit – Only $5
Use our easy Dancing Raisins Science Lab Kit to grab your studentsā attention without the stress of planning!
Itās everything you need to make science easy for teachers and fun for students ā using inexpensive materials you probably already have in your storage closet!
Dancing Raisins Science Experiment Instructions
Step 1 – Gather your materials together and begin by pouring the pop into the cup. Pour until it is about 3/4 of the way full.
As you are pouring the pop, take a moment to make observations. What did you notice as you poured the pop into the cup? Did you see anything interesting happen? Did you hear anything as you poured the pop into the cup?
What do you think will happen if you place the raisins into the cup? Write down your hypothesis (prediction) and then continue the experiment to test it out and to find out if you were correct.
Step 2 – Next, take a handful of raisins (approximately 10-15) and carefully place them into the cup. Then take a step back and look through the side of the cup to watch what happens.
Step 3 – What initially happened to the raisins? Did they sink to the bottom? Did they float to the top? As you observe the cup for a few minutes, did anything else happen? Was your hypothesis correct?
Do you know what caused the raisins to “dance” and move up and down in the pop? Find out the answer in the how does this experiment work section below. It also contains ideas on how you can expand on the experiment.
Dancing Raisins Science Experiment Video Tutorial
How Does the Science Experiment Work?
When you first place the raisins in the soda, the raisins sink because they are denser than the soda. As the carbon dioxide gas bubbles dissolved in the soda attach to the wrinkled surface of the raisins, the raisins begin to rise. The raisins rise because the soda bubbles help increase the buoyancy of the raisins.
Buoyancy is the tendency of an object to float in fluids because of the upward force fluid exert on objects.
This increase in buoyancy helps the raisins become less dense than the soda. When the raisins get to the surface of the soda, the carbon dioxide bubbles surrounding the raisins pop. The raisins lose buoyancy and become denser than the soda so they begin to sink. As the raisins sink, more carbon dioxide bubbles will attach to the raisinsā wrinkled surface, starting the process all over again!
The raisins will continue to dance (sink and float) in the soda until all of the carbon dioxide bubbles have popped and the soda becomes āflatā.
More Science Fun
Try this same experiment with objects that do not have a wrinkled surface like blueberries or grapes. Do they rise in the soda the same way the raisins did?
Instead of using soda like 7Up or Sprite, try using baking soda dissolved in water and vinegar. Dissolve two teaspoons of baking soda into a half cup of water. Add 6-7 raisins to the baking soda/water solution. Slowly pour a tablespoon of vinegar into the mixture and watch the raisins dance! (This version of the experiment could make a mess, so put your cup into a shallow dish, like a pie pan, before adding the vinegar).
I hope you enjoyed the experiment. Here are some printable instructions:
- Glass Drinking Glass
Instructions
- Fill the drinking glass with pop
- Put in a handful of raisins
- Watch the raisins “dance” and move up and down in the glass.
Reader Interactions
March 11, 2022 at 9:08 pm
What if you add more soda? What’s going to happen to the raisins?
May 22, 2023 at 10:08 am
That’s a great question! Why not test it and observe what happens to the raisins. If you do, comment and let us know what you find!
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Written by Brenda ā¢ Feb 8, 2024 ā¢ Leave a Comment
Dancing Raisins Experiment- Fun Science for Kids!
Have you ever witnessed the fascinating spectacle of dancing raisins? Your kids are in for a treat with this cool and simple science experiment! This straightforward dancing raisins science experiment is not only incredibly simple but also a whole lot of fun! And with the complimentary printable science recording sheets, it becomes an even more enriching experience.
Table of Contents
Incorporating STEM activities into educational curricula helps to foster scientific thinking from an early age. Gather a few common household supplies, and let’s dive into this fun science activity together!
You’ll only need a few supplies, and it’s guaranteed to work like magic! Your kids will be both amazed and enlightened.
As they watch the raisins dance, your kids will have plenty of questions, providing a great opportunity for you to explain some of the scientific concepts behind this experiment.
Dancing Raisins Science Experiment
Explore this delightful dancing raisins science activity with your kids; it’s perfect for preschool, kindergarten, and early elementary school ages!
Check out the video of the dancing raisins experiment
What do kids learn with the dancing raisins experiment.
Initially, when you drop the raisins into the soda, they sink to the bottom of the glass because they are denser than the soda.
However, the carbonated soda, vinegar, and baking soda release carbon dioxide bubbles. The bubbles love to cling to the rough surface of the raisins.
The carbon dioxide gas acts like tiny flotation devices that lift the raisin to the surface of the soda, resulting in increased buoyancy and reduced density of the raisins.
Once the carbon dioxide bubbles reach the surface of the cup of water, the bubbles pop, releasing gas into the air.
This causes the raisin to lose its buoyancy and fall back down to the bottom of the glass.
This fascinating cycle continues until all the carbon dioxide has escaped, and the baking soda and vinegar no longer react.
Supplies for the Dancing Raisin Experiment
Here is what you need to complete this experiment!
- Club soda (Sprite will also work)
- Baking soda
- Raisins (medium to large)
- Clear glass or cup
Check out our favorite kindergarten and preschool supplies list here.
How to Do the Dancing Raisins Easy Science Experiment
Always provide adult supervision while conducting this dancing raisins science experiment.
Separate the raisins before using them in this experiment. If they stick together, the experiment won’t work.
Fill a glass with clear soda and add a tablespoon of vinegar.
Drop 6-7 raisins into the glass.
Observe what happens. Do they sink or float?
Add a teaspoon of baking soda to the liquid. The mixture should start to bubble, and the raisins will start to “dance” inside the cup.
Now, sit back and watch the magic unfold.
Note: It might take a minute or two for the raisins to start dancing.
The kids will absolutely love this! They’ll be delighted to see the raisins rise and fall in the soda as bubbles attach to them and lift them up.
It’s a preschool science experiment that’s not only super easy but also incredibly entertaining.
What is the chemical change in dancing raisins?
Baking soda and vinegar react when mixed, producing carbon dioxide gas. As this gas emerges, it adheres to the raisins inside the bottle.
When a raisin accumulates a sufficient amount of gas, it initiates its ascent toward the surface, with the carbon dioxide temporarily boosting the raisins’ buoyancy.
More Lessons in Kitchen Chemistry
Experiment with different types of soda or chemical reactions to see which reactions produce enough bubbles to make the raisins dance.
Try adding other foods to the carbonated water. Some popular options include macaroni, blueberries, rice, corn kernels, grapes, and lentils.
Where to get this printable
Get the dancing raisins sheet here.
More Fun Science Experiments
Here are some other vinegar experiments and other science experiments to try
- Watch your kids marvel at the colorful reactions in this lava lamp experiment.
- Explore surface tension with ease through this milk and soap science experiment.
- Discover the magic of growing a rainbow with just Skittles and water.
- Explore clouds and rain in a fun way with this rain cloud jar science experiment.
More Science Experiments
Brenda MacArthur is a STEM curriculum writer, STEM author, and STEM accessibility advocate. She founded the site STEAMsational.com in 2012 which offers hands-on STEM activities for kids and STEM lesson plans for teachers.
View all posts from this author
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How To Make Raisins Dance Using Baking Soda
Hereās a simple science experiment to make raisins dance using baking soda and vinegar! It is similar to our “How To Make PopCorn Kernels Jump” experiment we did a while back. We used alka-seltzer tablets for that experiment but it still yielded a similar result-so be sure to check it out after you learn how to make raisins dance! On to our science experiment…
So for a few of our experiments, we’ve been using organic food sources and it honestly doesn’t have that effect you want…like it just doesn’t work (sometimes). But all we had were organic raisins and so we crossed our fingers and toes and went to work. (note: it DID work! so if you have organic raisins try it! and if you have non-organic raisins as well, try them out, too! You can compare to see if there is a time difference of when they begin to float to the top.)
So here is a list of the materials we used to make raisins “dance”.
Transparent Bowl
3 tsp of baking soda
About 10 raisins
5 tbsp of vinegar
Safety Goggles
Directions:
*Safety Goggles On* 1ļøā£Fill the glass bowl 3/4 full of water. (So basically fill the bowl with water but don’t let it overflow) 2ļøā£Add 3 teaspoons of baking soda to the water and gently mix them together. 3ļøā£Add the raisins to the glass bowl. 4ļøā£Add 5 tablespoons of vinegar into the glass bowl. 5ļøā£Observe and record your observations.
*Discard everything when done with experiment. DO NOT EAT*
So why/how could this happen?
Simple Explanation: Raisins are denser than water. So when raisins are added to the water, it just sinks. But when vinegar and baking soda are added in, they create a carbon dioxide gas which then attaches to the raisins- raising them to the surface. When the carbon dioxide gas bubbles āpopā or are released at the surface, the raisins fall back down. And the process repeats. And so now the raisins are “dancing”.
…And of course my youngest had to create his own experiment which you see in this video š. He hoped the raisins would explode upwards along with the baking Soda/vinegar solution…but it didnāt. ā¹ļø. So then he wanted to leave it soaking in the solution for a few days to see what would happenšØāš¬… Update: some of the raisins swelled- Osmosis!!
Have you tried this experiment? If you did let me know how it went by commenting below. Also let me know if you used something other than raisins- I’m always looking for new experiments to do with my kids as they love science.
And if you haven’t already, check out “How To Make PopCorn Kernels Jump”
Other Fun Experiments To Try:
- How To Use Fungi To Start A Fire- Chemistry Experiment
- Fireworks In A Glass | Science Experiment For Kids
- How To Ignite Iron- Using Mel Science Chemistry Kit
- Coin Experiment
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Dancing Raisins Science Experiment
- a glass cup or jar
- baking soda
To do this experiment, half fill your glass cup with water.
Add about 3 tsp baking soda and mix.
Drop in about 4 – 5 small raisins.
Carefully add 4 TBSP of vinegar to the glass jar.
Watch and wait. It will take a few minutes to start working. Then the raisins will start dancing!
Extended learning
- You could also try with different types of dried fruit and see if they work too – such as Craisins and sultanas
- Try using other liquids such as lemonade, mineral water or soda water.
Why do the raisins dance?
The vinegar and baking soda create carbon dioxide bubbles, the same gas that carbonates soft drink or soda pop. The bubbles will gather under the raisins until there’s enough fizz to raise them to the surface. When the bubbles pop it causes the raisins to fall back down to the bottom and the process continues.
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Ingredients
- ▢ glass cup or jar
- ▢ 4 TBSP white vinegar
- ▢ 3 tsp baking soda
- ▢ 4-5 raisins
- ▢ water
Instructions
- Half fill your glass cup or jar with water.
- Add 3 tsp of baking soda per 250ml of water and mix a little.
- Drop in about 4-5 raisins.
- Carefully add 4 TBSP of vinegar and give it a few minutes to start working.
- The raisins should start dancing.
Nutritional information is an estimate and provided as a courtesy. The values may vary according to the ingredients and tools that are used. Please use your preferred nutritional calculator for more detailed information.
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COMMENTS
Find out in this simple baking soda investigation. What you need: A pint glass. Warm water. Raisins or anything else you would like to test. Bicarbonate of Soda (Baking Soda) White Vinegar. Instructions. Fill the glass half full with warm water. Add two heaped teaspoons of baking soda. Add a few raisins. Put the glass in a tray – it might ...
Baking Soda; Vinegar; How to Do Dancing Raisins Experiment. Fill a tall and clear glass halfway with water. Add 2 spoonfuls of baking soda and stir until it’s dissolved. Dump a handful of raisins into the glass of water and baking soda. Pour vinegar into the class and watch as the raisins start dancing around! Step 1: Pour Some Water Into a Cup
This Dancing Raisins Science Experiment uses the same chemical reaction behind the well-known homemade volcano project and the self-inflating balloon experiment. When vinegar (an acid) reacts with baking soda (a base) one of the products of the chemical reaction is carbon dioxide, a gas. In the volcano, the gas creates a bubbly solution which ...
Add enough vinegar to make the glass about three-quarters full, then proceed to Step 3. Put out one clear glass for every different type of soda you’ll be testing. Try different brands and flavors; anything goes so long as you can see the raisins. Make sure your soda hasn’t gone flat and then fill each glass to the halfway mark.
Carbon dioxide is released when vinegar is added to a simple mixture of water and baking soda. Tiny bubbles are created and stick to the surface of raisins and pull them toward the top of the cup. When raisins are raised to the top of the liquid mixture of vinegar, water, and baking soda, the bubbles pop. So, the raisins dip down into the liquid.
Fill your glass about 1/2 full with water. Add one teaspoon of baking soda and stir until it is dissolved in the water. Add 6 or 7 raisins to the glass. SLOWLY pour in vinegar until the glass is about 3/4 full. The vinegar and baking soda react to form carbon dioxide bubbles, and the raisins will dance just as in the soft drink!
Instead of using soda like 7Up or Sprite, try using baking soda dissolved in water and vinegar. Dissolve two teaspoons of baking soda into a half cup of water. Add 6-7 raisins to the baking soda/water solution. Slowly pour a tablespoon of vinegar into the mixture and watch the raisins dance! (This version of the experiment could make a mess, so ...
Fill a glass with clear soda and add a tablespoon of vinegar. Drop 6-7 raisins into the glass. Observe what happens. Do they sink or float? Add a teaspoon of baking soda to the liquid. The mixture should start to bubble, and the raisins will start to “dance” inside the cup. Now, sit back and watch the magic unfold.
Directions: *Safety Goggles On*. Fill the glass bowl 3/4 full of water. (So basically fill the bowl with water but don’t let it overflow) Add 3 teaspoons of baking soda to the water and gently mix them together. Add the raisins to the glass bowl. Add 5 tablespoons of vinegar into the glass bowl. Observe and record your observations.
To create this fun science experiment, you will need: To do this experiment, half fill your glass cup with water. Add about 3 tsp baking soda and mix. Drop in about 4 – 5 small raisins. Carefully add 4 TBSP of vinegar to the glass jar. Watch and wait. It will take a few minutes to start working. Then the raisins will start dancing!