This MRAT explains the controls that need to be put in place when watering plants in a gardening activity.

The removal of scale from hard water from sinks, taps, toilet bowls, washbasins, baths, kettles and steam irons. All use some form of acid as the active ingredient.

Explains the relative merits of three different ways of producing printed circuit boards by etching copper-clad boards.

Small soldering jobs requiring a flame or the annealing of small metal objects with a blowtorch attached to a small cartridge of butane.