| A | B |
|---|
| microwave | used on cell phone technology |
| radio wave | longest wavelength of light |
| ultraviolet | causes sunburn |
| visible light | how humans view the world |
| x-rays | can find hidden cracks in metal |
| gamma rays | can be used to cure cancer , or cause cancer |
| infrared | night vision goggles use this |
| proton | positive charge, in the nucleus of an atom |
| electron | very small, outside of the nucleus of an atom |
| neutron | neutral charge, in the nucleus of an atom |
| ion | has a positive or negative charge because of unequal proton to electrons |
| isotope | atom of the same element with a different number of neutrons |
| atom | basic unit of matter |
| element | pure chemical substance consisting of only 1 kind of atom |
| red | longest wavelength of visible light |
| violet | shortest wavelength of visible light |
