Across
- 3. how hot or cold something is
- 5. Earth's only natural satellite
- 7. The only known livable planet
- 8. 24 hours
- 11. going around a central object, takes one year
Down
- 1. The top and bottom halves of the earth
- 2. Summer, winter, spring, fall
- 4. spinning in place, causes day and night cyle
- 6. 365 days
- 9. invisible line going through the center of the earth
- 10. The most major natural light source for us