The Rock cycle: Inter-House Competition .set 2

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Across
  1. 3. The layer of Earth where magma originates
  2. 6. The process that turns magma into igneous rock
  3. 8. Small pieces of rock, shells, and mineral particles
  4. 10. A series of processes that repeat continuously
  5. 13. Igneous rocks that form inside the Earth’s crust
  6. 15. To press together tightly, part of sedimentary rock formation
  7. 16. The innermost layer of the Earth
  8. 18. Found in many sedimentary rocks
  9. 19. Igneous rocks that form on the Earth's surface
  10. 20. A light igneous rock that can float on water
Down
  1. 1. A hard metamorphic rock formed from sandstone
  2. 2. A metamorphic rock that splits into smooth sheets
  3. 4. A coarse-grained sedimentary rock with rounded pebbles
  4. 5. To change in form, as rocks do in the rock cycle
  5. 7. Plates that move and cause pressure for metamorphic rock formation
  6. 9. Where lava cools to form extrusive rocks
  7. 11. A banded metamorphic rock
  8. 12. Naturally occurring solid found in rocks
  9. 14. A fine-grained sedimentary rock
  10. 17. A shiny black volcanic glass