👉 Watch the video of Sarah’s school science experiment here!
Hello parents, teachers and students! If you’re looking for fun way to explore chemistry, this experiment is for you!
Be sure to check out GMSA@9 on Wednesdays when Meteorologist Sarah Spivey does the demonstrations and explains the science behind it.
HERE’S WHAT YOU’LL NEED
- Vinegar
- A tissue
- Baking soda
- A ziplock bag
- Warm water
- Measuring cup
DO THE EXPERIMENT
- NOTE: It’s best to work outdoors if you can. This can be a bit messy! Use a buddy if you can
- STEP 1: Add 3 teaspoons of baking soda onto the center of a tissue and fold it to make a little bundle. Place this aside.
- STEP 2: Add 1/4 cup of warm water to the ziplock baggie
- STEP 3: Add 1/2 cup of vinegar to the baggie
- STEP 5: Seal up the baggie most of the way, but leave some space so that you can put the bundle of baking soda into the bag.
- STEP 6: This next part requires you to act quickly -- place the bundle of baking soda into the bag and zip it up the rest of the way. Then quickly place it on the ground. Watch as the baggie expands and pops!
HOW IT WORKS
Vinegar is and acid and baking soda is a base. When these two combine, they produce a chemical reaction -- producing carbon dioxide gas. The gas causes the bag to expand and POP! it busts open.
Our stomachs contain stomach acid, which helps digest our food. Our digestive system is in a delicate balance, and if that balance is disturbed it can lead to uncomfortable side effects. So, be careful what you eat!
SCIENCE WITH SARAH
If you’d like Sarah and David to come to your school and conduct a science experiment live on KSAT, email sciencewithsarah@ksat.com.
Parents and guardians: upload a video of your child performing the activity by clicking here. Send it in and you might see it on GMSA @ 9 a.m.!
