Across
- 2. is a Germanic word for “the ground”
- 5. only star in the solar system
- 9. this has 8 planets and 5 dwarf planets in it
- 10. has 146 moons in orbit
- 12. can be extremely hot and cold
Down
- 1. named after the Greek god of the sky
- 3. known as the “Red Planet”
- 4. 2.8 billion miles away from the sun
- 6. discovered by Isaac Newton
- 7. collection of stars and planets
- 8. everything
- 11. 11 times wider than Earth