Rocks Crossword Puzzle

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Across
  1. 2. melted rock on the surface of the earth
  2. 4. movement and breaking down of sediment
  3. 7. refers to the shape, size and type of crystals in a rock
  4. 9. rock type that forms from cementation and compaction
  5. 14. a type of sedimentary rock that forms from gluing together of chunks of rocks
  6. 15. refers to what a rock is made up of
  7. 18. a sedimentary rock that forms from shells
  8. 20. broken down pieces of rock
  9. 21. a type of sedimentary rock that forms from the remains of living things
  10. 23. melted rock beneath the ground
Down
  1. 1. means melted rock
  2. 3. an igneous rock that forms slowly underground
  3. 5. gluing of pieces of rock together
  4. 6. a type of metamorphism that occurs when a rock touches magma underground
  5. 8. a rock type that forms from heat and pressure
  6. 10. an igneous rock that forms quickly above the ground
  7. 11. describes how one rock can turn into another type of rock
  8. 12. gas pockets
  9. 13. the pressure of pieces of rock on top of eachother
  10. 16. means mineral alignment
  11. 17. rock formed from melting and cooling of molten rock
  12. 19. rocks are made of these
  13. 22. a smooth-textured igneous rock that has no crystals