Across
- 2. Loose Atoms/Invisible
- 5. How heavy something is
- 8. cold
- 9. Change Reversible (two words)
- 10. made up of lots of atoms
- 11. Matter made up of Photons(Two Words)
- 13. Substance
- 15. hom much of something
- 17. Point Really Cold(two words)
- 19. matter made of quarks(two Words)
- 20. Point Really hot (two words)
Down
- 1. Lightning
- 3. Change Non Reversible(two words)
- 4. smallest thing
- 6. set piece
- 7. Mixing
- 9. Small air _______
- 12. Breathe in
- 14. wet
- 16. hot
- 18. when somethings rotting