Weather

4. Liquid to gas
11. air rising and cool air sinking
12. point^The temperature at which a solid becomes a liquid
13. amount of space an object takes up
14. measure of the average energy of motion of the particles of a substance.
15. Gas to liquid
18. snow, sleet, or hail that falls to the ground.
19. force that results in precipitation falling towards the ground; makes things fall
20. Mass^A large body of air with the same temperature and humidity throughout. The area over which it forms is what provides its characteristics.
22. conditions in a particular area for a long period of time

1. tightly packed the matter in a substance is.
2. by unequal heating of earth's surface which causes differences in air temperature
3. vapor^water in the form of a gas
5. amount of water vapor in the air
6. word for light; type of heat transfer by electromagnetic waves
7. zone where two different air masses meet that brings a change in weather. Kinds include cold front, warm front, stationary front, occluded
8. much stuff or particles make up an object
9. of heat transfer where heat energy is transferred when particles collide
10. describe the ________ of matter
16. point The temperature at which a liquid changes into a solid
17. pressure^Force of the air above a surface pushing down on it due to gravity.
21. Cycle^continuous movement of water from ground to sky