Across
- 3. The cycle of heating, rising cooling, and sinking is a ____ current.
- 4. Continental plates move on the plastic like layer of the Earth's surface called the _____
- 6. Sections of Earth's crust and part of the upper mantle are called _____
- 7. All continents once might have been connected in a large landmass called _____
- 8. The hypothesis that continents move slowly is called continental ______
- 9. The theory that Earth's crust and upper mantle are in sections that move is called plate _____
Down
- 1. Below Earth's crust is ______
- 2. The crust and part of the upper mantle are known as the _______
- 5. Hot magma forced upward at mid-ocean ridges produces seafloor ____