Across
- 9. when the Earth blocks sunlight from reaching the moon
- 11. the larger planets of the outer solar system; Jupiter, Saturn, Uranus, Neptune
- 12. different shapes of the moon as seen from Earth
- 13. on Earth, summer, autumn, winter and spring; caused by the tilt of the planets axis
- 14. model of the universe with the sun as the centre
- 15. the time a planet takes to rotate once once completely on its own axis
Down
- 1. one complete orbit of the Sun
- 2. relating to the sky or to spaces
- 3. satellites placed into orbit by humans
- 4. the time a planet takes to revolve once around the Sun
- 5. oval shaped
- 6. the total or partial obscuring of one celestial body by another
- 7. model of the universe with the Earth as the centre
- 8. roughly spherical ball of rock or gas that orbits the Sun
- 10. the line connecting the north and south pole. Earth spins on this