Science 7B L1 Plate Tectonics

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Across
  1. 2. hot air or liquids rise above cooler air or liquids
  2. 6. technology that uses sound waves to map the ocean floor
  3. 7. hypothesis explaining how the ocean floor forms and how continents can drift
  4. 8. sections of Earth’s crust that move around on the mantle
  5. 10. location where two lithospheric plates move apart
  6. 11. area where two lithospheric plates come together and one sinks beneath the other
  7. 12. long deep ocean canyons
  8. 13. the sinking of one plate beneath another
Down
  1. 1. long mountain range on the ocean floor formed by magma at divergent boundaries.
  2. 3. location where two lithospheric plates slide past one another in opposite directions
  3. 4. large landmass when all of the continents were connected together
  4. 5. boundary: location where two lithospheric plates come together
  5. 8. theory that Earth’s surface is divided into lithospheric plates that move over the planet’s surface
  6. 9. Wegener’s hypothesis that the continents move over Earth’s surface