Who Put the Pop in Pop?

What You Need:
  • Baking soda
  • Vinegar
  • A ziplock bag
Question: Where do the bubbles in soda pop come from?

1.First, put two big spoonfuls of baking soda in a plastic ziplock bag.

2. Then, seal the bag nearly closed. Leave a small opening.

3. Pour about half a cup of vinegar into the bag. Quickly seal the bag closed.

4. Gently shake the mixture.

5. Congratulations Kitchen Chemist! You've just made a gas known as carbon dioxide.

A Scientific Explanation
When the baking soda and vinegar mix they create a gas known as carbon dioxide. It is carbon dioxide gas that gives soda its pop. Carbon dioxide gas is also what creates the fire-damping foam in some fire extinguishers.

Can you explain why carbon dioxide foam would make a good fire extinguisher?


  • Pullys Please!
  • Honey-Comb Bones
  • Follow the Flickering Firefly
  • Take an Ant to Lunch
  • Fossil Fun!
  • Suspend Metal in Mid-Air!
  • Clickety Clack: The Transfer of Force
  • Make Rain Indoors!
  • Eruptions of Color!
  • Wacky Water
  • Tiny Tornados
  • Fantastic Fingerprints
  • Mirror,Mirror on the Wall
  • Bubble Fun
  • Meteorite Beach
  • Rock Shard Puzzle
  • Tweet Tweet Tweet! Bird Sounds
  • Sound and Vision!
  • Super Science in Your Own Backyard
  • Grow Your Own Crystal Candy
  • Ant Antics
  • Make Carbon Dioxide
  • Battle Beetles!
  • Seashells by the Seashore
  • Race the Moon
  • Capillaries in Action
  • Shoebox Dig
  • Backyard Dinosaurs
  • The Incredible Egg
  • Icebox Erosion
  • Make a Rainbow
  • Aqua Vision

Back to Games & Activities