2008年1月14日 星期一

Questions- States of Matter

States of matter
Key terms
1. Condensation
2. evaporation
3. expansion
4. mass
5. melting
6. solidification
7. sublimation
8. volume
Answer of key terms
1. Changes from gas to liquid
2. Changes from liquid to gas
3. It is an increase in the volume of something when its temperature rises.
4. The amount of material that makes up an object.
5. Changes from solid to the liquid.
6. Changes from liquid to solid
7. Changes from solid directly to gas
8. The amount of space that a material takes up.

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