The Water Cycle An original Power Point presentation by Lindsey Durham

Water Water covers 70 % of the earth’s surface. The total amount of water on earth is fixed and does not change. It moves constantly in a 4 step cycle.

Water The Water Cycle The Water Cycle –Process in which water moves from the oceans to the air to the ground and finally back to the oceans.

Water 4 Steps in the Cycle 4 Steps in the Cycle –Evaporation –Condensation –Precipitation –Collection

Water 1. Evaporation 1. Evaporation –The suns heat turns liquid water into water vapor (humidity). –Warm air holds more water than cooler air. This is why we have more humidity in Florida This is why we have more humidity in Florida

Water 2. Condensation 2. Condensation 1.As the warm air rises it cools. 2.The cooler air loses its ability to hold as much humidity. 3.Water Vapor changes back into a liquid. 4. The tiny water droplets come together to form clouds.

Water 3. Precipitation 3. Precipitation –Water falls back to the earth in the form of rain, snow, sleet or hail depending on the air temperature.

Water 4. Collection 4. Collection –Occurs when the precipitation reaches the earths surface and collects in streams, rivers, etc. –The water is eventually taken back to the oceans.

Water The process then starts all over again. The process then starts all over again.

Uses of Water Hydroelectricity Hydroelectricity –Electricity that is generated by the energy of falling water