Headwaters - beginning of a river usually found in mountains, Temperature - measures how hot or cold something is, WaterPollution - the addition of harmful chemicals to natural water, Subsidence - sinking of the Earth's surface, Transpiration - water from plants is turned into water vapor and rises into the atmosphere, Evaporation - water is turned to vapor and rises into the atmosphere, Precipitation - water droplets in the clouds become too heavy and begin to fall (snow, rain, sleet, hail), Condensation - water vapor in the atmosphere becomes liquid water droplets as it encounters colder air, Groundwater - water under the land's surface often stored in saturated pores of soil or rock, Porosity - percentage of the total volume of rock or sediment that consists of pore spaces, Aquifer - permeable rock layers or sediments that transmit groundwater freely, Delta - depositional feature of built up sediment that forms where a stream enters a lake or ocean, Estuary - an ecosystem in which fresh water from rivers mixes with salt water from ocean, Geyser - hot springs periodically erupt through small openin in the crust, Spring - a section of impermeable rock forces groundwater to move laterally and emerge onto the surface of the earth, Dam - barrier to obstruct the flow of water, Swamps - freshwater wetland that contains woody plants and shrubs, Meander - curves in a river caused by an obstruction, Gradient - the slope or steepness of a stream channel, Channel - the course the water in a river or stream will follow,

Unit 3 Hydrosphere (Freshwater Notes)

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