This Kapow pupil video is part of the Kapow Science scheme of work. It is designed for pupils and explores how sound is created and travels through different materials. Vibrations from objects, like guitar strings or drum skins, push against air, liquid, or solid particles to create sound waves. These waves travel through the air, are detected by our ears, and interpreted by our brains. The video shows how sound behaves differently in gases, liquids, and solids—explaining why whales can communicate over great distances and how sound travels through doors or water. Pupils will discover that all sounds start with vibrations and can move through various materials to reach us.

The video is designed to be shown to pupils as part of Science, key stage 2, Year 4, Energy: Sound and vibrations, Lesson 2: Sound waves