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Conduction and Insulation

In this worksheet, students will look at materials that are good heat insulators or conductors and explain conduction using the particle model of the different states of matter.

'Conduction and Insulation' worksheet

Key stage:  KS 3

Curriculum topic:   Physics: Energy

Curriculum subtopic:   Energy Changes and Transfers

Difficulty level:  

Worksheet Overview

Conductors let energy flow through them (for example, electrical or thermal energy). Heat energy travels through solids because of conduction. Materials that do not conduct heat well are heat insulators. We use these to insulate houses and prevent loss of heat energy.

 

Metals are good heat conductors. Wood and plastic are good heat insulators.

 

Wall insulation

 

Solids are better heat conductors than liquids and gases. When solids are heated their particles gain energy and vibrate more; they also need more space to move around. The particles collide with (bump into) each other and pass the energy on.

 

Liquids and gases are better insulators than solids, because their particles are far apart.

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