unit 3 vocab

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Across
  1. 3. slide a hill of rocks coming down
  2. 6. thickest layer of the earth
  3. 7. builds up and forms a flat piece of land
  4. 8. a huge slow moving sheet of ice
  5. 9. processes builds up the earth
  6. 10. takes rock away
  7. 12. processes destroy the way something looks on the earth
Down
  1. 1. the flat area of land next to a river that receives the over flow of water
  2. 2. ocean waves help to form this
  3. 4. drops rock off
  4. 5. breaks rock down
  5. 9. of the earth the outer layer of the earth
  6. 11. dunes big hills of sand in the desert
  7. 13. when the energy waves reach the surface,the ground shakes