Science Unit 5 Vocab Part:2

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Across
  1. 4. A plate boundary where two plates move toward each other.
  2. 5. Stress that stretches rock so that it becomes thinner in the middle.
  3. 9. A plate boundary where two plates move away from each other.
  4. 10. Stress that squeezes rock until it folds or breaks.
  5. 11. Stress that pushes a mass of rock in opposite directions.
  6. 12. The name of the single landmass that broke apart 200 million years ago, and gave rise to today's continents.
  7. 13. Continental-Drift The hypothesis that continents slowly move across Earth's surface.
Down
  1. 1. Elongate depression of the Earth's surface.
  2. 2. A series of extremely long waves caused by large and sudden displacement of the ocean, usually the result of an earthquake below or near the ocean floor.
  3. 3. A landform that rises at least 1,000 feet (300 meters) or more above its surrounding area.
  4. 5. Long, narrow depression on the seafloor that forms at the boundary of tectonic plates where one plate is pushed, or subducts, beneath another.
  5. 6. The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary.
  6. 7. Boundary A plate boundary where two plates move past each other in opposite directions.
  7. 8. A major belt of volcanoes that rims the Pacific Ocean.