| A | B |
|---|
| earthquake | caused by movement of the crust and mantle of Earth |
| erosion | movement of weathered rock |
| flood | when large amounts of water cover land that is normally dry |
| glaciers | huge sheets of ice |
| volcano | opening in Earth's surface from which lava flows |
| weathering | breaks rocks into smaller pieces |
| barrier island | a thin band of land near a coast |
| canyon | a lowland with very steep sides |
| landforms | shapes or features on Earth's surface |
| mountain | a place that is much higher than the land around it |
| plain | a flat area |
| plateau | a flat area higher than the area around it |
| valley | a lowland area between higher lands |
