Across
- 3. safety glass
- 4. most common colored glass
- 6. sodium carbonate
- 9. resistant to water
- 10. transparent amorphous solid
- 12. silicon dioxide
- 14. bullet resistant
- 16. fingerprints
- 19. resembles circles
Down
- 1. water soluble colors while wet
- 2. sparkles
- 5. hair color
- 7. how much an object shows light
- 8. created by volcanoes
- 11. most basic, common glass
- 13. looks like spider webs
- 15. fused silica
- 17. bluish green
- 18. radial cracks