| A | B |
|---|
| erosion | The moving of weathered materials |
| weathering | The breaking of rocks into smaller pieces |
| mantle | Magma forms in Earth’s thickest layer, which is called |
| magma | Hot, molten rock that forms deep underground |
| crust | The thinnest layer of Earth |
| landforms | hill, mountain, and a valley |
| core | innermost layer of the planet |
| lava | Hot, molten rock on Earth’s surface |
| volcanic eruptions | rapid change |
| crust forms | igneous rock from a volcanic eruption cools |
| gravity | causes a rockslide |
| Earth’s core is solid | under great pressure |
| erosion and weathering | both change landforms over a long period of time |
