- Review pupils' key stage 2 work on insulators, where they may have investigated keeping cups of liquid warm or preventing ice cubes melting.
- Recap year 7 work on the need to conserve energy resources. Ask groups to discuss the ways used to prevent energy escaping from homes,
eg loft insulation, heavy curtains, cavity-wall insulation.
- Use models to explain how these methods work,
eg double glazing, draught excluders.
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- describe and explain how a house can be fitted out to reduce heat loss
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