The Water CycleBy Shana Trotter

Earth’s Water

Limited Supply

Never new water, always the same

Water cycle allows us to have water

Three StatesSolid

Liquid

Gas

Water Cycle Overview

EvaporationWater changes from liquid to gas

Water vapor collects in the air

Evaporates from lakes, oceans, puddles, etc.

Evaporation Experiment

Step 1: fill a glass measuring cup with waterStep 2: wait one day and mark the new water

levelStep 3: repeat step 2 over several days and

compare the new water level to the original level

You will see evaporation!

CondensationWater vapor in the air changes from a gas to

a liquid

Cool temperatures cause this

The liquid collection forms clouds

Condensation ExperimentStep 1: fill a glass with iceStep 2: let it sit on the counter for a few

minutesStep 3: observe the water droplets that

appear on the outside of the glass

How did they get there?Condensation

PrecipitationClouds can only hold so much waterThey get heavy and the water must leaveForms

RainSleetSnowHail

Forms of Precipitation

http://www.youtube.com/watch?v=kFFHo4T-g4E

CollectionWater falls back to earth and could land

In oceans, lakes, rivers, etc.On land

Water on land may runoff into a body of water or become groundwater

GroundwaterWater that seeps into the ground following

precipitation

SourcesSlide 3 Water Cycle Diagram:

http://www.kidzone.ws/water/Slide 5 Picture: ga.water.usgs.gov Slide 6 Picture: melindahinsonneely.comSlide 8 Picture: etc.usf.eduSlide 10 Video: uploaded by afreshour http://

www.youtube.com/watch?v=kFFHo4T-g4E Slide 11 Picture: lvwash.org Slide 12 Picture: myteacherpages.comSlide 13 Animation: cnobleza.wordpress.com