Answer :

Solar heater/cooker is exceptionally good medium to use solar energy. It is a conventional source of energy which reduces the consumption of non-conventional sources of energy like coal, natural gas etc.


Steps included to make a solar heater/cooker are:


• Take a wooden box which has handle for transportation and a lid is attached with this box with double hinges.


• Cover the inner side of the lid with aluminum foil/concave mirror which will act as a reflector. It will reflect the rays of the sun.


Line the bottom of the box with black construction paper—black absorbs heat. The black surface is where the food will be set to cook.


Affix glass plate on the inner side of the box in order to insulate the wooden box so that heat is trapped in the box.


Place the food to be cooked inside the box and turn the reflector lid towards the sun.


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