Earth's Forces and Cycles

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Across
  1. 1. the formation of crystals
  2. 2. a natural process in which material is worn away from the surface of the earth
  3. 4. a rock made up of other older rocks
  4. 5. a green coloured gem
  5. 6. a large mass of intrusive rocks that have solidified deep within the earth
  6. 7. metamorphism produced by mechanical forces
  7. 15. molten rock that spills onto the earth through a volcano
  8. 16. an igneous rock that sticks out from the earth
  9. 19. a brownish black coal
  10. 20. a fine grained mineral with a soapy feel
  11. 21. a rock altered by pressure or heat
  12. 22. an igneous rock within the earths crust
  13. 23. the outer layer of the earth
Down
  1. 1. when rocks are exposed to chemical decomposition and physical disintegration
  2. 3. a common sedimentary rock
  3. 8. the center of the earth under the mantle
  4. 9. a physical process where rocks are changed due to the weather
  5. 10. the layer between the earth's crust and the earth's core
  6. 11. one of the 3 main rocks. Produces limestone, chalk and shale
  7. 12. a vent in the earth that produces lava
  8. 13. a hard volcanic glass
  9. 14. a clastic sedimentary rock made up of mainly sand
  10. 17. one of the main rocks formed beneath the earth's surface or at its surface
  11. 18. hot molten rock inside the earths crust