Materials :
·
Balloon
·
clean empty bottle
·
vinegar
·
Baking Powder
Balloon Experiment:
Brainstorm ways to blow up a balloon (e.g. blow air into the balloon,
fill it with helium, etc.) All these ideas are ways to use a GAS to fill up a
balloon.
Using an empty bottle, vinegar and baking soda think of ways to use
these new materials to blow up the balloon. Predict what will happen when
vinegar and baking soda are combined in the bottle.
·
Stretch the balloon to make it easy to inflate.
·
Pour 1 cup of vinegar into the bottle.
·
Pour 6 teaspoons of baking soda into the balloon.
·
Carefully fit the balloon over the mouth of the bottle without letting
any baking soda fall into the bottle.
·
After the balloon is completely over the mouth of the bottle, let the
baking soda fall into the bottle.
·
Observe the balloon expand!
When baking soda and vinegar are
mixed, they form a GAS (carbon dioxide) that rises up into the balloon and
inflates it.
Here are some of the explanations. This is a working document and not completed yet.