Waves: Refraction - Bending light and waves (GCSE Science/Physics)

Why does a straw look bent in a glass of water? Why do swimming pools appear shallower than they really are? In this episode of GCSE Science Simplified, we break down refraction using clear, real-life examples you’ll recognise. Learn how waves change speed at boundaries, why light bends in glass, how the classic glass block practical works, and how sound waves behave when they move between materials. Perfect for GCSE students who want to understand refraction clearly and confidently.