| A | B |
|---|
| darkness | when there is no light there is |
| source | where light comes from |
| vibrations | these cause sounds to be made |
| string | the vibrating part of a violin |
| brass | the type of intrument that includes trumpet and french horn |
| straight | light travels in ........ lines |
| reflects | if light bounces off someting we say it |
| transparent | means light can pass through |
| opaque | means light can't pass through |
| shadow | forms when light is blocked by something |
| periscope | used to look over a wall or around a corner |
| vacuum | something sound can't travel through |
| solid, liquid and gas | things sounds can travel through |
| high note | produced by a tight string |
| low note | produced by a large instrument |
