Earth's Changing Surface

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Across
  1. 2. Two plates slide past each other in opposite directions and often cause an earthquake.
  2. 6. of Fire, a ring along the Pacific Ridge where many volcanoes and fault lines can be found
  3. 7. Two plates pull away from each other often creating rifts and valleys.
  4. 9. boundary where the movement of two plates push together and form mountains when the collide, or crash into each other
  5. 12. a crack in the Earth's crust
  6. 13. Two plates push together and form mountains when they collide at a _____________ boundary.
  7. 14. a rock formed by heat and pressure that often has crystals.
  8. 15. name given to the supercontinent that is believed to have existed long ago.
Down
  1. 1. hot molten, melted rock under the Earth's surface.
  2. 3. rocks formed by sediment deposited over time through cementation and compaction forming layers in rocks,
  3. 4. rock formed by the cooling and hardening of magma
  4. 5. hot, molten, melted rock that flows on the Earth's surface.
  5. 8. When the plates squeeze or stretch, huge rocks form at their edges and the rocks shift with great force, causing an_____________.
  6. 10. is a hill or mountain that forms over a crack in Earth’s crust from which lava erupts
  7. 11. plates, large pieces of the Earth's crust that float on top of melted rock called magma.