Across
- 5. The sinking movement of ocean floor back into the mantle
- 7. A super continent that existed at the time of the dinosaurs, was made up of all the current continents combined to form one massive landmass.
- 8. The layer below the crust, made up of a mix of magma and rock
- 10. Undersea valleys that are the deepest part of the ocean
- 12. Long zipper-like chains of undersea mountains
- 13. The idea that the continents of the Earth have moved around the world over the course of millions of years
- 15. These currents in the mantle push the tectonic plates to move around
Down
- 1. The Earth's crust is broken up into these large slabs of rock
- 2. Rock that comes from smaller rocks and/or living matter being pushed together
- 3. An idea that can be tested by investigation or experimentation
- 4. Rock that comes from other rock being given lots of heat and pressure
- 6. The process of magma rising out of cracks in the Earth's crust and hardening into new rock at the bottom of the ocean
- 9. The outermost layer of the Earth, mostly solid rock with small amounts of metal and magma
- 11. The man who came up with the hypothesis of continent drift
- 14. Rock that comes from magma or lava cooling