Alka Seltzeer and Balloon
Obj. 7a, 8b, 11d,
Instructions - Option 1:
Gather your materials: Balloon, Alka Seltzer and a little bit of water.
Blow up your balloon several times to stretch it out.
Place a little bit of water in the balloon.
Add 1 tablet of Alka Seltzer and have an adult help you tie it as fast as possible.
Observe.
Instructions - Option 1:
Gather your materials: 2 balloons, 2 plastic bottles, some water and Alka Seltzer.
Blow up your balloons several times to stretch them out.
Fill one bottle with a little bit of water and put a balloon on top of the bottle.
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.
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?
