Across
- 5. A stony or metallic object that has fallen to Earth from outer space.
- 6. The imaginary line the Earth spins around
- 8. Third planet from the sun
- 10. Lumps of rock orbiting the Sun left over from when the Solar System formed.
- 11. Dust particles frozen in ice that orbit the Sun.
Down
- 1. The natural satellite that orbits the Earth
- 2. The length of time it takes for a planet to orbit the Sun.
- 3. The period on one section of the Earth or other planet when it is facing away from the Sun.
- 4. An outer planet in the Solar System made mainly from gas.
- 7. The star the Earth orbits around
- 9. A non-contact force that acts between two masses.