Across
- 2. a relatively calm area near the equator where warm air rises
- 5. the condition of the atmosphere at any given moment in a particular area
- 6. a very large body of air that maintains uniform temperature, humidity, and pressure as it moves
- 8. the tectonic plate movement away from another plate
- 12. the boundary at which two different air masses meet
- 15. a material found in nature that is useful to humans
- 16. the cold winds from the poles to the 60 degree latitudes that blow from east to west
- 17. the type of igneous rock formed by cooling quickly with small crystals
- 19. a local wind that blows from the land toward a body of water
- 20. the movement of air caused by differences in air pressure
- 22. a local wind that blows from an ocean or sea toward the land
Down
- 1. the relatively calm areas located near both 30 degree latitudes where cool air sinks
- 3. the process of removing salt from seawater to obtain fresh water
- 4. a line used on a map or chart connecting points of equal air pressure
- 7. the winds, found between the 30 and 60 degree latitudes, that blow toward the poles from west to east
- 9. the tectonic plate movement toward another plate
- 10. a solid fossil fuel formed from decomposed plant remains
- 11. a wind that changes direction with the change of seasons and which usually brings very heavy rainfall
- 13. the winds that blow easterly from both 30 degree latitudes toward the equator
- 14. a compound made of the elements hydrogen and carbon
- 18. the type of rock formed by extreme heat and pressure
- 21. the type of rock formed by melting, cooling and hardening