| A | B |
|---|
| acid rain | smoke from factories and exhaust that falls to the ground in the form of precipitation |
| prism | a beam of sunlight is refracted when it passes through the glass |
| anti-acid | a base that neutralizes some of the acid in your stomach |
| photons | extra energy given off in packets; make up beams of light |
| refraction | the bending of a light wave as it moves from one material to another |
| focal point | the point at which light rays meet when reflected or refracted |
| Celsius scale | part of the metric system |
| expansion | as matter is heated it expands, or grows,spreads out |
| stirring | speeds up the rate ofthe dissolving process |
| primary colors | red,blue,yellow |
| heat | cause particles in matter to move |
| conductor | allows electrcity and heat to move through the substance- most metals are good conductors |
| insulation | provides protection from too much heat or too much cold |
