This brief guide gives some sensible things to consider when setting a task for pupils which involves taking an item apart to find out how it works, or how it is manufactured.

Adhesives mainly used to hold textiles together temporarily or to affect a repair. Other compliant materials are often held together by glues of many different types.

Joining two surfaces together using a variety of adhesives.

The use of chemical cleaning agents to improve the flow through the drain from a sink and remove stains from the sink itself; many use strong acids or alkalis, others contain enzymes or hypochlorite.