| A | B |
|---|
| Plates that slide past each other | transform boundary,  |
Plates that move apart,  | divergent boundary |
Plates that collide together,  | convergent boundary |
| Name this supercontinent meaning "all land" | Pangaea |
| The rising and falling of a fluid | convection current |
| In class, what did the cracks in an eggs represent | plates |
| What is the process of adding new rock to the ocean floor called | sea floor spreading |
| what do the up and down arrows mean on the ocean rock | magnetic pole reversal |
| I proposed that the continents were once all together | Alfred Wegener |
| I discovered the sea floor was spreading | Harry Hess |
