Science

2. The scientific study of weather.
3. Liquid water droplets suspended in the air.
8. Water as a gas.
10. When something stays mostly the same over time.
11. The movement of air in a particular direction.
12. A measure of how hot or cold something is.
14. The layer of the atmosphere closest to Earth, where weather happens.
16. The process by which a liquid changes into a gas.
18. Scientific methods used to reconstruct and understand a mystery.
19. Where something comes from.
20. The force on a surface caused by the weight of the atmosphere pressing down on Earth.
21. When something becomes different over time.

1. Rain, snow, sleet, or hail that falls from clouds onto the ground.
4. The mixture of gases surrounding a planet.
5. To move from one object to another or one place to another.
6. A measure of how much water vapor is in the air.
7. The process by which a gas changes into a liquid.
9. Something we observe to be similar over and over again.
13. The ability to make things move or change.
15. Conditions such as rain, clouds, and wind at a particular time and place.
17. An amount of air that moves as a unit.
18. One thing that contributes to causing an event.