Electricity - Bulbs in Series and Parallel

Lesson 8 – Current and Voltage in Series and Parallel Circuits (PPT + Worksheet)
This lesson helps students apply their understanding of current, voltage and circuit structure to real circuit behaviour. Through comparison tasks, guided reasoning and visual modelling, pupils explore how brightness, current and voltage change depending on whether a circuit is series or parallel. They then evaluate which circuit types are most efficient for different purposes, building strong scientific justification skills.

By the end of this lesson, students will be able to:

Compare the brightness of bulbs in different circuit types

Explain how voltage and current are distributed

Predict changes in a circuit based on its configuration

Evaluate why certain circuits are more efficient for specific tasks

This ready‑to‑teach PPT and worksheet set strengthens conceptual understanding and supports confident application of circuit knowledge, making it ideal for Year 7 students moving towards more independent reasoning in electricity.