Water Sources

2. None of the Earth's water is safe to drink because of what is mixed in it.
6. A large body of water that is still and surrounded by land.
8. All water on Earth is constantly recycled in this system.
9. The approximate percentage of Earth's water that is salt water.
10. The percent of the largest source of the Earth's freshwater which is found in ice caps and glaciers.
11. Water found in rivers, lakes, glaciers, ice sheets, and underground that contain low concentrations of salt.
12. The second largest (30%) source of freshwater.
14. Most of the Earth's water is at the North and South poles in the form of this and glaciers.
16. The major force of energy that powers the weather and water cycle.
17. Water is treated at a treatment facility to remove what can cause serious illnesses.
19. The cooling of water in the atmosphere changing gas to liquid.
20. The approximate percentage of Earth's water this is freshwater.
21. A small body of freshwater that flows into a river.

1. Water changes from liquid to a gas caused by heat.
3. Areas where standing water covers the soil, or the area where the ground is very wet.
4. The passage of water vapor from a plant to the atmosphere.
5. Water droplets falling from the atmosphere in the form of rain, snow, sleet, and hail.
7. Rainfall that is not absorbed by the soil and travels to the ocean.
13. Another word for salt water.
15. The approximate percentage of Earth covered in water.
18. A large, slow moving, long-lasting accumulation of snow and ice that develops on land.