| A | B |
|---|
| volcano | a type of mountain with an opening at the top through which lava, ash flow |
| magma | hot melted rock and gases deep inside the earth |
| lava | hot, melted rock thta comes out of a volcano |
| earthquake | a shaking or sliding of the surface of the earth |
| landform | a shape on the earths surface |
| plain | a large flat area of land |
| plateau | a large flat area of land that is high |
| weathering | the breaking down and changing of rocks |
| erosion | the carrying away of weathered rocks or soils by water,wind,or other causes |
| glacier | a huge amount of moving ice |
| plant roots | change the earth by breaking rocks and helping to prevent erosion |
| animals | change the earth's surface by digging and holes and tunnels |
| people | change the earth's surface by digging and by preventing erosion(putting up fences on beaches) |
