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Lesson 2

Waterforms of Pennsylvania

TermDefinition
tributary A smaller stream flowing into a larger stream or lake.
reservoirs An artificial lake where water is stored and collected for water supply.
freight Cargo.
commerce The exchange or buying and selling of commodities.
headwaters The source of a stream.
source The beginning of a stream of water.
watershed Geographic area or region into which all the creeks and tributaries flow into a large river.
mouth Part of a river where its water empties into another body of water.
wetlands Lowland area, such as a marshy or swampy place, that holds moisture.
hydroelectric power The force of water falling over a dam used to turn a turbine, or engine, at a power plant which creates electricity.
 



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