Earth Layer & Plate Tectonics Review

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Across
  1. 3. A type of volcano with flat, gently sloping sides and generally nonexplosive eruptions.
  2. 4. flow Rapidly moving clouds of hot ash, gas, and debris.
  3. 8. Type of plate boundary where two plates are moving apart.
  4. 11. This type of landform occurs at a continental – oceanic convergent boundary.
  5. 13. This forms when an earthquake occurs under the ocean.
  6. 14. Slower moving seismic waves that travel side to side and can't travel through liquids.
  7. 16. This type of landform is created at a continental–continental convergent boundary.
  8. 17. Earth’s crust is broken into pieces called _____.
  9. 19. Fast moving seismic waves that travel horizontally.
  10. 20. This event occurs at a transform boundary.
Down
  1. 1. Scientist who proposed the theory of continental drift.
  2. 2. New seafloor is created at this oceanic-oceanic divergent boundary.
  3. 5. Circular flow of heating and cooling magma in the mantle.
  4. 6. Theory that Earth’s continents were once joined together and have since broken apart.
  5. 7. Volcanoes form over these unusually hot regions of Earth’s mantle.
  6. 9. The point on Earth’s surface directly above the focus where an Earthquake originates.
  7. 10. Type of plate boundary where two plates are moving toward each other
  8. 12. A crack in Earth’s crust.
  9. 15. Magma that flows onto Earth’s surface.
  10. 18. A supercontinent made of all of Earth’s land masses.
  11. 21. Type of plate boundary where two plates are sliding past each other horizontally.