Concept · 4 steps · NESA SC4-CHG-01

Energy Transfers

The one idea behind every change there is — that energy is never made or destroyed, only moved and reshaped. From why a torch lights up, all the way to reasoning backwards from a warm phone. Four short steps, each with its own toy to play with.

1 Where it comes fromEnergy is never made or destroyed — only transferred and transformed. Build a device's energy chain and find the leaking heat. 2 How to do itTrace a transfer chain start to finish, and the three ways heat travels: conduction, convection and radiation. 3 Where it gets trickyEnergy isn't "used up", heat isn't temperature, and cold isn't a thing that flows in. 4 Out in the wildEfficiency and wasted heat, insulation, renewable vs fossil — and reasoning backwards from a warm phone.

← This concept rests on

Foundational — the Doorway into Change

→ It unlocks

Chemical Change
Geological Change