Across
- 4. the process by which oceanic crust sinks beneath a deep ocean trench and back into the mantle at a convergent plate boundary
- 7. a form of oxygen that has 3 oxygen atoms instead of two
- 8. the average annual conditions of temperature, precipitation, winds, and clouds in an area
- 12. a band of high speed winds about 10 km above the Earth's surface
- 13. the transfer of energy by electromagnetic waves
- 14. the tide with the least difference between consecutive low and high tides
- 16. the effect of Earth's rotation on the direction of winds and currents
- 18. small, solid pieces of material that come from rocks or the remains of organisms
- 19. the layer of hot, solid material between Earth's crust and core
Down
- 1. the horizontal movement of air from an area of high pressure to an area of lower pressure
- 2. a naturally occurring solid that can form by inorganic processes and that has a crystal structure and a definite chemical composition
- 3. a dense sphere of solid iron and nickel at the center of the earth
- 5. the transfer of thermal energy by the movement of a fluid
- 6. the relatively thin layer of gases that forms Earth's outermost layer
- 8. the transfer of thermal energy from one particle of matter to another
- 9. the process by which water, ice, wind, or gravity moves weathered particles of rock and soil
- 10. the flow of cooler air from over an ocean or lake towards land
- 11. either of the two days of the year on which neither hemisphere is tilted toward or away from the sun
- 15. a series of processes on the surface and inside Earth that slowly changes rocks from one kind to another
- 17. a feature on the surface of Earth, such as a coastline, mountain, or delta