Across
- 3. A frozen mass of dust and gas which revolves around the sun
- 7. a rock, smaller than a planet, which orbits the sun
- 8. This is made up of all types of matter and energy which are thought to exist physically
- 10. a group of planets orbiting around the star Sol, which is another name for our sun
- 13. a map of the night sky
Down
- 1. a natural satellite which orbits a planet
- 2. a large, cool star
- 4. a small, dense star
- 5. the space around a small, massive object which has so much gravity that light can't even escape
- 6. a streak of light, also known as a shooting star, which occurs when a meteorite enters earth's atmosphere
- 9. an object moving around a star
- 10. An object that shines because of energy being released by nuclear reactions in its core
- 11. Our galaxy!
- 12. a group of stars, gas and dust which is held together by gravity