Across
- 5. These deposits show how the continents were once located in a colder climate
- 6. ____ -two inches: how far the plates move in year
- 7. Name of the "supercontinent"
- 8. Causes continental drift
- 11. Feature on the ocean floor where seafloor spreading occurs
- 12. softest part of the mantle
- 13. when one plate slides underneath another plate
- 16. Scientist who developed the theory for continental drift
Down
- 1. study of the magnetic fields in rocks
- 2. Oceanic Crust is ____ dense than continents crust
- 3. theory that continents have drifted to their present location
- 4. Currents in the mantle that cause plate movement
- 9. crust and the upper part of the mantle
- 10. Scientist who discovered sea-floor spreading
- 14. Rocks on continents are _________ than seafloor rocks
- 15. Feature on the ocean floor when it subducts under continental crust