Across
- 1. A loose collection of atoms moving around each other
- 2. Rays part of the electromagnetic spectrum
- 4. The amount of matter something is made of
- 5. A force that pulls matter together
- 6. Rocks floating around in space
- 9. The galaxy we live in
- 11. A group of stars in the sky
- 12. An icy rock
- 14. The space around a magnet
Down
- 1. A collection of thousands to billions of stars held together by gravity
- 3. The other name of the milky way (Indonesian)
- 4. The strike of light caused when a meteoroid enters a planet's atmosphere and starts to burn from a heat of friction
- 7. A place in space where matter and light cannot escape if they fall in
- 8. The outer atmosphere of a star
- 9. The stuff that everything is made of
- 10. The gasses held by gravity around the earth and other planets
- 13. The best known of the dwarf planet