Science presenter Jon Chase explains total internal reflection. He demonstrates how total internal reflection can make a coin disappear inside a glass of water and bend a laser beam. The second ...

It’s to do with differential reflection – which colours are absorbed ... This clips is relevant for teaching Physics at KS3 or KS4 and National 4/5. This appears in AQA, OCR, EDEXCEL, WJEC ...

This lesson, designed to last for one hour, explores the symbolic significance of memorial alongside Bible passages relating to war and peace. It comes complete with separate KS3 and KS4 activities to ...