Alka Seltzer
and Balloons

Obj. 7a, 8b, 11d

InterACTion Option 1:

  1. Gather your materials: Balloon, Alka Seltzer and a little bit of water.

  2. Blow up your balloon several times to stretch it out.

  3. Place a little bit of water in the balloon.

  4. Add 1 tablet of Alka Seltzer and have an adult help you tie it as fast as possible.

  5. Observe.


InterACTion Option 2:

  1. Gather your materials: 2 balloons, 2 plastic bottles, some water and Alka Seltzer.

  2. Blow up your balloons several times to stretch them out.

  3. Fill one bottle with a little bit of water and put a balloon on top of the bottle.

  4. Fill the other bottle with a little bit of water and add 1 tablet of Alka Seltzer and put a balloon on top of the bottle as quickly as possible.

  5. Observe the differences of the two bottles.

InterACTions:

  • What do you think will happen?

  • Why do you think the balloon grows?

  • What are you wondering?

  • What else do you want to try with balloons or Alka Seltzer?