About the Earth

3. flat section of land between two mountains
5. flat dry lands usually covered in grass
10. very, very dry and flat land with barely any water
12. violent shaking of earth's crust as built up energy is released
13. very steep cliff with a closing river at the bottom
14. destructive force in which pieces of rock are moved from place to place by flowing water, wind, gravity, or ice
17. earth's natural landforms are mountains, plateaus, river valleys, coastal plains and beaches
18. similar to a cave, and has really hollow holes in the ground
19. melted rock below the earth's surface
20. thick layer of earth's structure just below the earth's crust

1. earth's innermost structure
2. magma that was pushed to the earth's surface
4. when sediments slide down from a steep slope
6. a mountain that spouts lava, smoke and toxic gasses
7. destructive force that breaks down rocks into smaller pieces
8. the thin, rocky outer layer of earth that makes up the continents and ocean floor
9. one plate of earth's crust that crashed into another that raised a part of the land
11. water flowing or connecting over land that is usually dry
15. tiny section of land that forms in the sea with trees and sand and surrounded by water
16. the planet we live on