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Investigating Electricity

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This is one of a set of resources developed to support the teaching of the primary national curriculum. They are designed to support the delivery of key topics within science and design and technology. This resource focusses on the investigation of how different supply voltages affect the brightness of a lamp.

Lamps produce light when connected to an appropriate power supply, such as a battery. Investigating how different battery voltages affects their brightness is key to understanding how series electrical circuits work.

In this activity learners will assemble three different lamp circuits; one powered by a single AA battery, one powered by two AA batteries and one powered by three AA batteries. They will investigate the brightness of the lamp for each configuration. They will learn about current, voltage and how simple series circuits work.

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