Water on Earth

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Across
  1. 4. The number of people in a place
  2. 6. A huge piece of ice that stores freshwater
  3. 7. Water droplets that fall from clouds
  4. 8. Trash or chemicals that makes water dirty
  5. 9. Someone who uses science to design things
  6. 10. Most of Earth's water is ______ in the ocean
  7. 11. All of the living things on Earth
Down
  1. 1. Water that is NOT salty, humans need it
  2. 2. All of the liquid and ice water on Earth
  3. 3. Water in the spaces and cracks underground
  4. 5. A place that stores and collects freshwater