Solar oven

To build a solar oven, you need:

- A shoebox
- Aluminium foil
- Card
- Scissors
- A pair of sticks
- A piece of cheese (or other food)

Next, follow the instructions shown on the picture

The following video shows how a solar oven works. Glass windows provide passive solar heating. Sunlight passes through the glass and is absorbed by surfaces and becomes heat energy, which is emitted as infrared radiation. This is reflected back to the food. Solar collectors use mirrors (aluminium foil) to focus the Sun’s rays onto a small area. In some parts of the world, this idea is used to make simple solar ovens to cook food without using fuel. More complex solar collectors use curved mirrors to reflect the Sun’s rays onto a focus point.

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