Explains laser classification and hazards. Describes the  lasers that are permitted in school and the range of relevant practical work. Also desribes common devices which use lasers and how they might be used in school. Finally, describes the classification and uses of modern, bright LEDs.

Sensitising and curing photosensitive inks and resists.Exposing treated screens for screen printing.

To produce the track layout on a copper-clad board so that an electronic circuit can be made by etching away unwanted copper. 

The heating or bonding of materials to form shapes which can then be finished to provide a 3 dimensional representation of a CAD image.