Across
- 3. surface layer of Earth
- 5. Sulfur Dioxide dissolves in a rainwater and produce this
- 7. fossil fuel is one example
- 11. dead plant/body from millions of years ago
- 12. This is made up of little fragments of rocks. This is often carried by river
Down
- 1. A thing that affects the environment negatively
- 2. scientist who discovered a lot about space and they study about space
- 4. these Materials produce rocks
- 6. A pattern that is made of stars
- 8. scientists who study rock
- 9. the shape of the moon seems to change as the day pass. what is called?
- 10. Earth follows this