Unit 3 Weeks 3 and 4 "Extreme Earth"

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Across
  1. 4. The top layer of something.
  2. 7. A large area of flat, nearly treeless land.
  3. 8. A very deep valley.
  4. 10. A part of something.
  5. 11. Something you can see and touch.
  6. 12. The salt water that covers three-fourths of Earth.
Down
  1. 1. The natural shape of a section of land.
  2. 2. A low area of land between two high areas.
  3. 3. An area of land.
  4. 5. A high, flat area of land.
  5. 6. To find.
  6. 9. How high the land is in an area.