| A | B |
| a medium | Not needed when electromagnetic waves transfer energy |
| gamma rays | Electromagnetic waves with the highest frequency/energy |
| electromagnetic spectrum | The range of electromagnetic waves placed in a certain order |
| speed | All electromagnetic waves have this the same |
| electromagnetic waves | Waves with some electrical and some magnetic properties |
| rainbow | Visible light separated into colors of the visible specvtrum |
| electromagnetic radiation | Transferred by electromagnetic waves |
| CELL PHONES transmit... | microwaves |
| The electromagnetic wave with the longest wavlength and the lowest frequency | Radio waves |
| Ultraviolet rays help your body produce | Vitamin D |
| thermograms | Images made by an infrared camera |