Solar Oven Using Cardboard: An Eco-Friendly Science Innovation
Solar Oven Using Cardboard: An Eco-Friendly Science Innovation Introduction A solar oven made from cardboard is a simple yet powerful demonstration of how renewable energy can be used in everyday life. By converting sunlight into heat, a solar oven allows cooking without electricity, gas, or firewood. This project is widely used in schools and science exhibitions because it highlights the practical application of solar energy in an affordable and environmentally friendly way. Concept Behind a Solar Oven The working principle of a solar oven is based on the greenhouse effect . When sunlight enters the oven through a transparent cover, it is absorbed by a dark surface inside the box. The absorbed sunlight is converted into heat energy. The heat becomes trapped inside due to the transparent cover, increasing the temperature within the box and allowing food to cook slowly. Materials Required To construct a solar oven using cardboard, the following materials are typically needed...