| A | B |
|---|
| Convection Currents | how scientists believe plates are moved |
| Mountains | formed when two continental plates collide |
| Divergent Boundary | the boundary between two plates that are moving apart |
| Subduction Zone | the area where one plate moves under another plate |
| Asthenosphere | continental and oceanic plates float on this |
| Convergent Boundary | the boundary between plates that come together |
| Ridge | underwater mountain range formed by two oceanic plates when they diverge |
| Pangaea | one huge supercontinent |
| Core | center layer of the Earth |
| Lava | magma that flows onto the Earth |
| Density | mass divided by volume |
| Subduction | when a plate goes into the Asthenosphere |
| Continental Drift | the hypothesis that Earth's continents move on Earth's surface |
