Earth Vocab

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Across
  1. 1. when one tectonic plate pushes underneath another into the mantle where it melts
  2. 3. when plates scrape past each other causing strong earthquakes
  3. 4. when two plates separate causing seafloor spreading, creating underwater volcanic chains and rift valleys
  4. 5. Movement of magma caused by temperature changes that move the lithospheric plates above
  5. 6. rocks that form when pebbles, sand, shells, and other pieces are cemented together over time
  6. 8. where two plates move together to form volcanoes, islands, and other landforms
  7. 9. Rocks that form when existing rocks change due to heat and/or pressure
Down
  1. 1. the formation of new areas of oceanic crust at midocean ridges and its movement on either side
  2. 2. the processes that change the surface of the earth through the movement if the lithospheric plates
  3. 7. rock that forms when magma cools on the surface or underground