ROCK/MINERAL CHOICE PROJECT

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Across
  1. 2. what are the hardest substance known to man
  2. 4. what type of rock comes from the combination of sedimentary and igneous rocks
  3. 6. what type of rock comes from the word "fire"
  4. 8. what TWO things break rocks down into sand
  5. 10. process of rocks being broken down
  6. 12. what holds the history of the Earth and the minerals that will be used to build the future of the Earth.
  7. 13. currents that go through the mantle
  8. 14. process of moving particles
  9. 15. an area where the tectonic plates are and where most volcanoes are located.
  10. 16. is the outer layer of the Earth
Down
  1. 1. when the tectonic plates run into each other
  2. 3. process that breaks down rocks due to chemical change
  3. 4. is the layer underneath the crust
  4. 5. inside layer of the Earth
  5. 7. what type of rock comes from the combination of sand, slit, or mud carried by moving water
  6. 9. where the mantle is closest to the surface
  7. 11. is the study of rocks