Across
- 2. A hard, transparent, amorphous, brittle solid made by heating a mixture of silica and other materials
- 3. Speed of something in a given direction
- 6. Without defined shape
- 7. layer of automotive paint that hides imperfections
- 11. In original place
- 12. holds paint together
- 13. type of safety glass composed of two layers of glass
- 15. most basic form of glass, most commonly found in jars, windows, and lamps, made with silica and sodium oxides
- 16. Heat- or chemically treated safety glass
- 18. has more than one refractive index
Down
- 1. only has one refractive index
- 4. Light travels fastest in this medium
- 5. the bending of a wave as it passes at an angle from one medium to another
- 8. the most important instrument for locating and comparing paint specimens
- 9. the layer of automotive paint that contains the coloration
- 10. circular breaks that form of the point of impact
- 13. glass containing lead oxide
- 14. the ratio of the mass of an object to its volume
- 17. fractures that form a straight line moving out from the point of impact