Water vocabulary words

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Across
  1. 3. water the water to make products
  2. 4. Footprint use a amount of water
  3. 6. things that interact physical environment
  4. 8. doing a examination
  5. 9. Fresh water
  6. 11. I have permission
  7. 13. exchanging goods
Down
  1. 1. using something carefully
  2. 2. Research making observations
  3. 4. system the bodies of water
  4. 5. Water no harm to drink
  5. 7. Accessible to every one
  6. 10. security they have safe water
  7. 12. of Water a large amount of water