Weather

3. A warm air mass advances to replace a cold air mass
4. The layer of the atmosphere closest to earths surface where weather occurs
7. The boundary where two air masses meet
8. A tool used to measure humidity
12. Air that is moving from an area of high pressure to an area of lower pressure
13. A line on a weather map that connects places with the same air pressure
17. A tool used to find the wind direction
18. An area where air is sinking and winds blow out from the center
21. An area where air is rising and winds blow to the center
22. The condition of the atmosphere in a certain place and specific time
23. A boundary between one warm air mass and two cold ones, where the warm air is pushed up
24. The temperature of which the air is saturated with water vapor

1. A toll used to measure atmospheric pressure
2. The weight of all the air in the atmosphere pushing on an object or area
5. The height of an object or point in relation to sea-level
6. How much water vapor is in the air compared to the max amount that the air can hold
9. A tool used to measure precipitation in inches or centimeters
10. A huge volume of air that has a uniform temperature and humidity
11. A cold air mass advances to replace a warm air mass
14. water droplets that form on surfaces due to condensation of water vapor
15. The amount of water vapor in a given volume of air
16. Tiny solid or liquid particles suspended in the atmosphere
19. A tool used to measure wind speed
20. A boundary between a warm and cold air mass that is not moving