Across
- 3. ____________is lighter than water, which is why it floats in water.
- 4. water is not colorless but pale ___________.
- 5. power generated from the natural flow of river.
- 6. Nearly 97% of the world’s water is ______.
- 7. Animals living in water.
- 9. an artificial lake where water is collected and kept for use.
- 10. rainfall with ice.
Down
- 1. Water regulates the Earth’s _____________.
- 2. gaseous state of water.
- 4. a transparent coating of ice, especially on a road surface.
- 5. Water is composed of two elements,______and Oxygen
- 8. A person can live about a month without food, but only about a week without water.