Weather Review

2. clouds need two things to form, _______ and particles
4. most vapor in the air comes from the evaporation of _______.
8. condition of the atmosphere at certain time and place
9. warm air holds _______ water vapor
13. measures air pressure
14. the percentage of water vapor actually in the air versus what the air can hold at that temperature
16. thick, lower level clouds that cover the whole sky like a blanket

1. precipitation is any form of _______ that falls from the sky
3. measures relative humidity
5. type of cloud that storms come from and hail forms in
6. large body of air with similar temperatures and humidity throughout
7. when two air masses meet but neither is strong enough the other, it forms a _______ front.
8. low pressure systems (cyclones) bring _____ weather
10. high pressure systems (anticyclones) bring ____ weather
11. the place where two air masses meet but do not mix
12. cold fronts move _______
15. the difference between sleet and freezing rain is where they ______.