| A | B |
|---|
| light | a wave we see with our eyes |
| electromagnetic spectrum | the range of waves that include radio waves, light and X rays |
| energy level | a property of electrons inside atoms |
| incandescence | heating something up so hot it gives off light |
| fluorescence | stimulating atoms to emit light using light of another energy |
| radio waves | electromagnetic waves that have very low energy and wavelengths of many meters |
| infrared | electromagnetic waves that we feel as heat |
| ultraviolet | electromagnetic waves with more energy than visable light and that can cause sunburns |
| X rays | electromagnetic waves that can pass through skin and make images of the body |
| gamma rays | electromagnetic waves that have very high energy and come from nuclear reactions |
| polarization | a way of aligning the direction of light wave vibration by blocking some of the waves |
| color | how we percieve different frequencies of light within the visable wavelength |
| photoreceptors | nerves in the eye that are sensitive to light |
| primary colors | red, green, blue |
| RGB model | making all the colors as mixtures of red, green, and blue light |
| magenta | a dye that absorbs green light |
| yellow | a dye that absorbs blue light |
| cyan | a dye that absorbs red light |
| photsynthesis | the process plants use to get energy from light |
| CMYK model | making all colors with cyan, magenta, yellow and black pigmements |
