Across
- 2. Large slab of solid rock
- 4. The boundaries where plates slide sideways past each other.
- 5. What kind of boundary it is when Seafloor spreading occurs at___.
- 6. the relatively thin part of the earth's crust that underlies the ocean basins. It is geologically young compared with the continental crust and consists of basaltic rock overlain by sediments.
- 7. ____from the Greek root “to build”.
- 8. the relatively thick part of the earth's crust that forms the large landmasses. It is generally older and more complex than the oceanic crust.
Down
- 1. What is the name of the Mesozoic supercontinent that consisted of all of the present continents?
- 2. refers to the key geological theory that explains how the Earth’s surface changes now and has changed in the past.
- 3. The zone along a plate boundary where one plate is forced under another plate is____.