| A | B |
|---|
| radio | longest wavelength of all em waves |
| microwaves | Used for radar - and cooking |
| Infrared | uses include keeping things warm and for tv remote controls |
| visible | easily seen type of em wave |
| red | Longest wavelength of the visible spectrum |
| violet | Highest frequency of the visible spectrum |
| Ultraviolet | Bees can see this - we can't |
| XRay | used for looking for broken bones |
| Gamma rays | Very dangerous form of radiation |
| Ultraviolet | gives us a sun tan |
| radio | used to transmit messages e.g. walkie talkies |
| microwaves | used to quickly defrost frozen food |
| green | the colour of Irish grass? |
| purple | the colour of scottish heather? |
| mirror | light reflects from this |
| spectrum | another name for a rainbow? |
| fibre optic | sometimes called a light pipe |
| satellite dish | used to focus radio waves |
| yellow | colour made from blue and green light |
| white | (red plus green plus blue) light |
