Across
- 2. who first stepped on the moon
- 5. gravity keeps what orbiting around the earth
- 6. what dwarf planet is bigger than Pluto
- 7. how long does it take the earth to have a complete orbit
Down
- 1. what is a common dwarf planet
- 3. keeps earth in orbit around the sun
- 4. all objects with what have gravity
- 5. what planet is closest to the sun