geology crossword puzzle

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Across
  1. 3. The first layer of the earth.
  2. 7. This is a category of the earth made up of rocks and mountains.
  3. 8. When plates move away from each other.
  4. 9. This is a category of the earth made up of organisms.
  5. 11. This is when plates collide with each other.
  6. 12. This is a category of the earth made up of water and ice
Down
  1. 1. The type of rock made from intense heat/pressure.
  2. 2. When one plate slips under the other.
  3. 4. The boundary that makes plates slip past each other. .
  4. 5. This type of rock is made of compacted sediment.
  5. 6. This is the layer of the earth that is the most dense.
  6. 10. This the type of rock made from hardened lava/magma.