6 The Dynamic Earth U3 L3 Three Classes of Rock

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Across
  1. 3. These rocks from when molten rock cools and solidifies
  2. 5. The metamorphic process in which mineral grains are arranged in planes or bands called ____
  3. 6. This rock occurs mainly at or near the surface of the Earth.
  4. 9. Gneiss is a foliated rock that forms from ____
  5. 11. The ____ and organic matter a rock contains determine the composition
  6. 13. This is an extrusive rock that cools so rapidly ghat no crystals form
  7. 15. ____ sedimentary rock forms when sediments are buried, compacted and cemented together by quartz
  8. 20. This is one type of sedimentary rock
Down
  1. 1. Metamorphic rocks that do not have mineral ____ that are aligned are called nonfoliated
  2. 2. This is a metamorphic rock with foliated texture
  3. 4. Ingenous rock that forms when lava erupts onto earth's surface
  4. 7. ____sedimentary rocks form when water, usually seawater, evaporates.
  5. 8. The ____ process in which mineral grains are arranged in planes or bands
  6. 10. This is another name that Obsidian can be called
  7. 12. This is a combination of one or more minerals or organic matter
  8. 14. This is when magma pushes into the Earth's surface and cools. The rock that forms is called ____
  9. 16. The ____ of a rock is made up of size, shape and positions of grains
  10. 17. Limestone rock is mostly made up of the mineral ____
  11. 18. Scientist divide rocks into 3 classes depending on how they ____
  12. 19. This is a nonfoliated metamorphic rock