rocks

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Across
  1. 4. When a solid material becomes part of a liquid.
  2. 10. groups used for classification.
  3. 12. Igneous rock that is formed "inside" the Earth.
  4. 13. academic verb meaning named or recognized based on specific features.
  5. 14. Preserved organic matter (remains) from a long time ago.
  6. 16. raw material (sand, pebbles, shells) that makes up rock.
  7. 18. An academic term for a specific length of time.
  8. 19. A rock type made of layers of pressed sediment.
Down
  1. 1. The process of pressing layers of sediment together.
  2. 2. Easily broken, fragile, or likely to shatter.
  3. 3. academic verb meaning made, created, or produced.
  4. 5. Geometric structures found in rocks with regular angles.
  5. 6. Igneous rock that is formed "outside" or above the Earth.
  6. 7. A rock type related to fire, melting, and cooling.
  7. 8. A physical force exerted on an object.
  8. 9. The process of "gluing" sediment together to form rock.
  9. 11. A rock type that fundamentally changes form due to heat and pressure.
  10. 15. the parts of dead plants or animals.
  11. 17. Term used to describe liquid rock and melted material.