Across
- 5. the model of the solar system where the sun is at the centre and the planets orbit it
- 6. the tilt of the earth on its axis and the path of orbit around the sun create these
- 7. the eighth planet from the sun
- 9. these orbit a star like the sun
Down
- 1. the theory that the earth was the centre of the universe
- 2. the planet closest to the sun
- 3. the earth is not sitting vertical on its axis, it is slightly what?
- 4. these orbit a planet
- 8. the third planet from the sun