Phase Change

5. the total kinetic energy of all the molecules that make up a sample
6. firm or stable in shape
9. a pull between two molecules that is always the same for a substance
12. a group of atoms joined together in a particular way
13. the change in state from a gas to a solid without going through the liquid state
14. a substance that flows freely but is of constant volume
16. a noticeably different form or state of the same substance
17. the thermal energy transferred from something at a higher temperature to something at a lower temperature
18. that which occupies space

1. the change in state caused when the molecules in a liquid gain enough energy to form a gas
2. the relative size of things
3. the way molecules in a substance move around relative to each other
4. a substance or matter in a state in which it will expand freely, having no fixed shape
7. the tiny pieces that all matter is made of
8. the change in state from a liquid to a solid
10. a measure of how hot or cold something is
11. the energy that an object has because it is moving
15. the change in state from a solid to a liquid