No water, no life

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Across
  1. 2. When liquid water turns into gas.
  2. 4. A hard state, like ice.
  3. 8. The number that shows most of Earth’s water is saltwater.
  4. 12. An ancient land “between the rivers” (the Tigris and Euphrates).
  5. 14. Water you can safely drink.
  6. 15. Water in rivers and lakes; not salty.
  7. 16. The number that shows how much of Earth’s surface has water.
  8. 17. A flowing state, like water.
  9. 18. A big river in West Asia, next to Iraq.
Down
  1. 1. Water that falls from clouds: rain or snow.
  2. 3. Something you can use many times, like a bag.
  3. 5. When water gas turns into tiny drops.
  4. 6. Another big river in West Asia, near the Tigris.
  5. 7. Very tiny pieces of plastic in water or soil.
  6. 9. An ancient king known for his laws.
  7. 10. An air-like state, like water vapor.
  8. 11. Small round plastic pieces, often in soaps or toothpaste.
  9. 13. Water in seas and oceans; salty.