Year 4 - Electricity - Factors affecting a bulb

This PowerPoint provides a complete, ready‑to‑teach lesson on Factors Affecting the Brightness of a Bulb, including a clear learning objective, key scientific vocabulary and a structured investigation idea. The slides guide pupils through the concept with simple explanations, visual prompts and questions to support discussion and understanding. An easy‑to‑follow experiment allows children to test how different components and conditions affect a bulb’s brightness, encouraging prediction, observation and scientific enquiry. The lesson ends with a quick recap to consolidate learning, making this resource ideal for developing pupils’ knowledge of circuits in an engaging and practical way.