Across
- 1. A natural satellite which orbits around a planet
- 3. A cluster of billions of stars, held together by gravity.
- 5. The Universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy.
- 6. Molten rock that is expelled out of a volcano
- 7. A material that absorbs water
- 9. Area of land where rubbish is buried to dispose of it
- 10. Molten rock inside a volcano
Down
- 1. The galaxy we live in
- 2. Movement around an object in a circular or elliptical manner
- 4. A model of the solar system which stated that the Sun is the centre of the solar system
- 8. Oval shaped