Across
- 4. an object that moves around another larger object in space
- 6. made of rock and metal
- 10. a force that pulls objects toward each other
- 11. Earth does this around the sun once a year
- 12. a group of stars that seems to form a picture in the night sky
- 13. the largest planet in the solar system
- 15. Earths spinning in space
- 16. a ball of rock and frozen gases
Down
- 1. an imaginary line through Earth
- 2. zone the region of space where the temperature range allows life to thrive
- 3. Earth is divided into theses halves
- 5. the path that an object takes around another object in space
- 7. a time of year with a particular type of weather
- 8. the smallest planet in our solar system
- 9. phases a change in the appearance of the moon's shape
- 10. the first person to study the night sky using a telescope
- 14. a large round body that revolves around a star in a clear orbit