Liquid (water) to a Gas Energy comes from the SUN

2. Evaporation • Liquid (water) to a Gas • Energy comes from the SUN

3. Condensation • Gas changes to a liquid

4. Precipitation • The water falls back to the Earth as rain, snow, sleet, etc

5. Transpiration • Plants draw in water from the soil through their roots. • Eventually the water drawn from the soil is given off through the plant’s leaves as water vapor in a process called transpiration.

6. Groundwater • Water that fills the cracks and spaces in underground soil and rock layers is known as groundwater. • Far more fresh water is located underground than in all of the earth’s rivers and lakes. • Water trickles down through the spaces between particles of rock and soil.

7. Surface Water Tributaries – Flow is downward towards the main river due to the force of gravity. All the tributaries together along with the river itself make up a “river-system.”

8. Watersheds • Just as water in a bathtub flows toward the drain, all the water in a river system drains into a main river. • Watersheds are also known as: “drainage basins” • The land area that supplies water to a river system is called a watershed

11. Ponds and Lakes -Ponds and lakes form when water collects in hollows and low-lying areas of land. Where does water come from? -Rainfall, melting snow/ice, and runoff. Some lakes and ponds are fed by rainfall or even groundwater.

13. Types of Wetlands 1.) Marsh – are usually grassy areas covered by shallow water or a stream. (ex: Washington State) 2.) Bogs – Are covered with mosses and have acidic water. (often form in depressions left by melting ice sheets, and are found mainly up north in cooler areas) 3.) Swamps – are similar to a flooded forest, containing murky dirty water with moss and many trees sprouting out from the water. (ex: Louisiana Swamp)