S: Wonderful Water by Debbie Turner
FC: An Earth Science Book by Debbie Turner | Wonderful Water
1: Water is essential to life on Earth. Did you know that 97% of all of the water on Earth is located in the ocean? Only 3% of the water on Earth is fresh water. Most of that is frozen water. Only 1% of the water is available for drinking water. But where does all of this water come from? Let's find out.
3: The sun shines on water all over the Earth making it warmer. This causes the water to eventually turn into vapor. This vapor becomes a cloud.
5: Evaporation occurs when the sun heats water turning it into water vapor. This vapor leaves its source and becomes part of a cloud.
7: As evaporation occurs, the water vapor becomes clouds. These clouds get so full of water that water droplets (rain) starts to fall. It falls onto the ground and into lakes, rivers,and streams.
9: When the air is really cold, it might snow rather than rain. The snow will remain on top of the ground until it melts. It will then turn into water and run into streams and rivers.
11: The snow that falls onto mountains may turn into ice because of the cold temperatures. This ice and snow may form glaciers.
13: Rivers and steams carry water to reservoirs, lakes, and finally to the ocean. Many carry the water thousands of miles.
15: Oceans cover about 80% of the surface of the Earth. When the fresh water gets to the ocean it mixes and becomes salty. The sun shines on the oceans and warms the water. The water becomes vapor and forms a cloud.
17: So far, we have learned how we get our water. Unfortunately, much of our water has become polluted. Every day, the toxic runoff from parking lots, busy roads and quiet subdivisions makes its way into our streams and oceans. We must do our part to keep our water safe. Remember not to litter. Do not place toxic materials in drains as they will end up in our water supply. Let's do all that we can to keep our water supply safe.
19: References: *All images obtained from Google Images United States Environmental Protection Agency. February 2006. The Water Sourcebooks: Fact Sheets. http://www.epa.gov/safewater/kids/wsb/pdfs/FACTS.pdf. Environment Canada. June 2004. Clean Water - Life Depends on it! http://www.ec.gc.ca/water/en/info/pubs/FS/e_FSA3.htm.