Dynamic Earth Test Review

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Across
  1. 3. _______________ currents are caused by temperature and density differences
  2. 6. the type of boundary when two plates move together
  3. 8. Earthquakes and _____________ are two things that can happen when tectonic plates move
  4. 10. this type of rock is formed from heat and pressure
  5. 12. this type of rock can contain fossils
  6. 13. the type of igneous rock formed on Earth's surface
  7. 14. a chemically pure substance
  8. 15. the process that breaks down rocks into smaller pieces
Down
  1. 1. Tectonic plates move due to ___________________________
  2. 2. the layer which tectonic plates float on
  3. 4. the plate boundary where two plates slide past each other horizontally
  4. 5. the type of boundary when two plates move apart
  5. 7. the type of rock formed from cooling magma or lava
  6. 9. the breakdown and decomposition of rocks due to chemical reactions
  7. 11. the type of igneous rock formed in Earth