Earth Science Terms

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Across
  1. 5. The type of currents of that are present in the mantle
  2. 8. The number of large tectonic plates
  3. 9. The denser of the two types of crust
  4. 14. The part of the core that is the hottest but also solid
  5. 17. The last name of the scientist that came up with the idea of continental drift
  6. 18. What causes the volcanoes on Hawai'i
  7. 21. Part of the earth that contains both the crust and the upper mantle
  8. 23. This forms at divergent boundaries right at where the plates separate at
  9. 24. This feature is found in the ocean at convergent plate boundaries, where deep sections are present
  10. 25. Continental plates move 1 to 10 ________________________ every year
  11. 26. This forms at convergent boundaries as a result of magma rising up under the service
  12. 27. The top taffy like part of the mantle
Down
  1. 1. The age of magnetic bands that are closest to the rift valley
  2. 2. These are where earthquakes occur as tectonic plates slip pass each other
  3. 3. One of the supercontinents that existed 300 million years ago
  4. 4. The first major type of evidence that supports continental drift
  5. 6. The second layer of the earth
  6. 7. These can be formed at convergent boundaries where one continental plate rises over another
  7. 9. The age of magnetic bands that are the furthest to the rift valley
  8. 10. The type of plate boundary where two plates move apart from each, allowing for new crust to be formed
  9. 11. These are underwater mountain ranges
  10. 12. The type of plate boundary where two plates collide causing the denser crust to be melted back into the mantle
  11. 13. The stronger lower part of the mantle
  12. 15. The thickest type of the two types of crust
  13. 16. Theory that there are large peices of the crust that move slowly over time causing continents to drift
  14. 19. The part of the core that is liquid
  15. 20. Happens when oceanic crust is pulled under continental crust as it is destroyed in the mantle
  16. 22. The top layer of the earth