| A | B |
| hydorelectric power | power made by rushing or flowing water |
| floodplain | low, flat land along a river |
| sound | large body of water between the main land and an island |
| river system | a river and its tributaries |
| fall line | a place along which rivers drop from higher to lower ground |
| plateau | high, mostly flat land |
| estuary | wide river mouth |
| tributary | river or stream that flows into a larger river or stream |
| climate | the weather a place has most often |
| precipitation | rain, sleet, or snow |
| tornado | a funnel-shaped, spinning windstrom |
| hurricane | a huge storm with heavy rains |
| natural resource | something found in nature |
| mineral | substance found in rocks |
| erosion | wearing away of the soil by wind or rain |
| cape | a point of land that sticks out in the ocean |