Water Sources

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Across
  1. 3. The layer of gas surrounding planet Earth that is held in place by gravity
  2. 5. A large body of water that is still and surrounded by land
  3. 7. A small body of fresh water that flows into a river
Down
  1. 1. Water found in rivers, lakes, glaciers, and ice sheets and underground that contains low concentrations of salt
  2. 2. Areas where standing water covers the soil or where the ground is very wet
  3. 4. The entire body of salt water that covers about 71% of Earth
  4. 6. A large, slow-moving, long-lasting accumulation of snow and ice that develops on land