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What's a Watt

The terms power, watts, energy, joules and calories are explored and put into context using rowing machines to demonstrate the differences and contextualise how much this really is.


Young people are then challenged to work in a team to row as far as possible, generating as much electrical energy as possible. This is then given to the young people in the form of food, so that they can visualise the link between work done and calories.

Topics covered

  • Science

  • Healthy Living

Logistics and Planning: 

  • What's a Watt requires a large classroom, hall or other clear space

  • This session is designed for a group of 30 learners.

  • Between 40-60 minutes.

  • We ask that a teacher is always present throughout the activities, to support learner engagement and manage behaviour.

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