Across
- 3. A group of millions or billions of stars.
- 7. A ball of gas that releases light and heat.
- 8. A planet made up mostly of gases, such as hydrogen and helium.
- 12. A large space rock that orbits the Sun.
- 13. A model of the Solar System in which the Sun is at the centre.
- 15. Sunlight that hits the Earth's surface at a low angle.
Down
- 1. A model of the Solar System in which Earth is at the centre.
- 2. A half of the Earth, either north or south of the Equator.
- 4. When the Moon passes into the Earth's shadow.
- 5. A planet made up mostly of icy materials.
- 6. The motion of one object around another because of gravity.
- 9. A large natural object that orbits a planet.
- 10. A time of year with typical weather patterns and daylight hours.
- 11. The galaxy in which the Solar System is located.
- 14. The time it takes a planet to rotate once.