| A | B |
|---|
| Translucent | Transmission of light, but not with a distinct image |
| Opaque | Will not transmit light |
| Refract | Bending light |
| Reflect | Light bounces off |
| Red | Glass color when red is reflected and others are absorbed |
| Impermeable | Does not contain pores or opening that allow material to pass through it |
| Elastic | The ability to the original shape after being deformed by a stress |
| Infared | Energy with slightly longer EMF wave thanvisable light |
| Coefficient of thermal expasion | A number that represents the percentage of expansion for each one degree Celsius raise in the temperature |
| Silica | Compound in glass that influences hardness, melting temperature and coefficient of expansion |
| Soda Lime | Type of glass with highest amount of thermal expansion |
| Fused Silica | Type of glass with lowest amount of thermal expansion |
| Anneal | Heat treatment used t soften and/or relieve stress |
| Tempering | A treatment that rapidly cools glass to make is stronger |
| Thermal Shock | The tendency to break when experiencing a rapid chane in temperature |
| Viterous | Glass like |
| Nucleating agent | Chemical that acts as a seed crystal in glass ceramics |
| Glass-Ceramic | Glass in which crystals are deliberately grown to increase strength, resistance to thermal shock or high temp capabilities |
| Ultraviolet | Energy with slightly shorter EMF wave than visible light |
