Across
- 1. A substance with a fixed shape and volume
- 4. The flow of water over the ground, such as in rivers and streams
- 7. A substance with a fixed volume that flows and changes shape
- 9. Water located underground
- 12. One of the forms that matter can take, such as solid, liquid, or gas
- 15. The gaseous form of water, an invisible component of air
- 16. A change of state from liquid to solid
Down
- 2. A long period of abnormally low rainfall
- 3. The soaking of water into the ground
- 5. The evaporation of water from the leaves of plants
- 6. A change of state from gas to liquid
- 8. The falling of water to the ground
- 10. A change of state from liquid to gas
- 11. Something that we need or use, found in the natural world
- 13. A change of state from solid to liquid
- 14. A substance with no fixed shape or volume
- 15. The continuous movement of water on Earth