Across
- 2. The Study of Earth's magnetic record is known as
- 6. name of an underwater valley or deppresion
- 8. Large marsupial
- 9. The type of boundary that has plates going away from each other
- 11. places where plates slide horizontally past each other
- 12. name for underwater mountain ranges
- 14. Explains how new ocean crust is created at ocean ridges and destroyed in deep-sea trenches
- 15. Who Proposed the hypothesis of continental drift
Down
- 1. Plates come together at
- 3. States that Earth's crust and rigid upper mantle are broken into enormous slabs that slowly move overtime
- 4. Occurs when one tectonic plate descends beneath another
- 5. The transfer of thermal energy by the movement of heated matter is
- 7. Earths continents were once joined as a single landmass called
- 10. A map line connecting points that have the same age in
- 13. A process that occurs at convergent boundaries