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3.1 Science Vocab
Science flashcards vocab
| Term | Definition |
|---|---|
| evaporation | process whereby the heat of the sun changes water on the Earth's surface from a liquid to a gas |
| condensation | return of water vapor to a liquid state by cooling |
| precipitation | liquid or solid water that falls from clouds to the Earth |
| transpiration | release of water vapor from plants' leaves into the air |
| runoff | precipitation (water) that runs off the land |
| groundwater | water stored beneath the Earth’s surface in rock |
| source | place where a stream or river begins |
| mouth | place where a stream or river ends, flowing into another body of water |
| velocity | distance water flows during some period of time, such as meters per second or feet per second |
| bed load | sediment carried along the bottom of the channel of the stream or river |
| tributaries | feeder streams |
| topography | physical characteristics of the land |
| gradient | slope of a river channel |