Wednesday, March 6, 2013

Heat & Energy

Expansion & Contraction Experiment


What I learned:
Heat is a form of energy. Hot air makes things expand. Cold air makes things contract.
 
1. What is in the bottle?      a.water b.air c.nothing
2. When water gets hot the air inside the bottle____________.    a.contracts b.cools off c.expands
3. As the air expands, the balloon_________.    a. stays the same b.gets bigger c.gets smaller
4. Molecules in a heated gas_____________.    a. move apart b.come together c.break

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