In pairs, learners build a piezoelectric generator from readily available electric components in the second and final installment of the two-part series. Tapping the piezoelectric element produces enough electricity to light an LED. Class members gain hands-on experience with turning waste energy into electrical energy, which requires calculating stored and converted energy.

Concepts

electricity, generating electricity, energy, electrical energy, energy conversion, renewable energy sources, technology resources

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Instructional Ideas

• Invite an electrical engineer to help out with the activity

Classroom Considerations

• Pupils should have knowledge of piezoelectricity from the previous lesson
• Internet access is necessary if using additional multimedia support (YouTube videos)
• Requires several different types of electrical components

Pros

• Lists some safety issues and troubleshooting tips
• Instructions include diagrams and clear pictures for each step of the building process

Cons

• None