Across
- 3. decreasing (HINT moon)
- 5. increasing (HINT moon)
- 6. A group of atoms
- 8. when more than half of the moon is lit up
- 10. the third planet from the sun
- 11. heat transfer through touch
- 12. A chemical element
Down
- 1. Hot air rises, cool air sinks
- 2. a small planet that orbits the earth
- 4. heat transfer through waves
- 7. when less than half of the moon is lit up
- 9. the star in our solar system