| A | B |
|---|
| Lava | molten rock on Earth surface |
| Pangea | supercontinent 250 million years ago |
| Magma | molten rock under Earth surface |
| Fault | long crack in the crust |
| Laurasia | northern continent after Pangea split |
| Collision Plate Boundary | where two plates crash into each other |
| Transverse Plate Boundary | where two plates slide in opposite directions |
| Trenches | deepest area of the oceans |
| Rock | main material of the crust |
| Nickel | one of two main components of inner and outer core |
