Across
- 3. a supply of something that is useful
- 7. water in the form of invisible gas
- 9. water without salt that we can drink
- 10. formed when condensation occurs in the sky
- 11. rain snow sleet or hail falls to earth
- 13. a long period of dry weather
- 14. the air that surrounds the Earth
- 16. all of the liquid water on earth
- 19. drives the water cycle
- 20. water with salt that we cannot drink, found in oceans
- 23. water that is found in soil and underground
- 24. someone who uses science to design something to solve a problem
- 25. 97% of Earth's water is found
Down
- 1. multiple parts that interact with one another in different ways
- 2. a group of atoms joined together in a certain way
- 4. no definite shape or volume and molecules move far apart
- 5. liquid changes to a gas
- 6. something that helps people do what they need to do
- 8. all the living things on Earth
- 12. gas changes to a liquid
- 15. where freshwater can be stored
- 17. definite shape and molecules are packed tight
- 18. giant rivers of ice that store most of Earth's freshwater
- 21. shape changes with the container and molecules glide past
- 22. to save or protect a resource for future use