From the DG Mackean website – loads of experiments for GCSE or A level.
Lots of ideas for experiments and demos with minimal kit, can be done at home.
Resources and information on projects involving fast plants (US site)
Youtube videos from “Demo Day” – part of science week, lots of demo ideas here.
Simple experiments with everyday items, instructions are in the form of cartoons. Would be good for KS2
Site gives lots of information on use of microscopes, interesting things to look at etc.