Across
- 2. When water changes from a liquid to a gas
- 4. Small bugs that tell the health of a stream
- 6. a sudden and violent shaking of the ground, sometimes causing great destruction
- 10. Hot air or liquid will rise because it is less ______
- 13. This type of rock comes from a volcano
Down
- 1. wind, water, and solar are all _________ resources
- 3. older rock is always found on the _______ layers
- 5. A species that is in danger of going extinct
- 7. Non living factors in an environment
- 8. The middle of an earthquake
- 9. Plates that move past each other and can cause natural disasters
- 11. When soil or sediment is moved from one place to another
- 12. The three states of matter are solid, liquid, and ______