Across
- 2. planet is the only one with life form of it
- 3. Earth is 4.54 what years
- 6. Melting what has a impact on Earth shape
- 8. Earth what 1000 miles per hour
- 11. mostly made up of iron and oxygen
- 12. Earth pace from the sun
- 13. 7.4 billion of Earth
Down
- 1. Earth has a what gravitation field
- 4. their are 5 of the same thing on Earth
- 5. 60 % of people live there
- 7. 71% of Earth
- 9. day first what day was made in 1920
- 10. 400 different species of Earth
- 12. Earth is a what planet