Across
- 2. Any object that orbits a planet or star
- 3. A large space rock that orbits the sun
- 5. A model of the solar system that has Earth as its centre
- 8. A ball of gas that releases light or heat
- 9. A large natural object that orbits a planet
- 10. An attraction force between any objects of mass
- 11. The time it takes a planet to make one full rotation around the sun
- 12. Half of the Earth
Down
- 1. A model of the solar system with sun at the centre
- 4. Any time of year with typical weather patterns and daylight hours
- 6. An invisible line that is drawn between the North and South poles
- 7. A group of many stars