Lasalle School Homabay

Many devices have been developed that use solar energy—light and heat emitted from the sun — including solar panels, artificial photosynthesis, and solar ovens. Solar ovens can cook food, pasteurize water, or even sterilize instruments using only the power of the sun. How does a solar oven work? The simple answer is that it is designed to absorb more heat than it releases.

Our Grade 3 learners successfully built Solar Oven using locally available materials and did an experiment with it by boiling water.

Materials used for making Solar Oven

  • Cardboard boxes (4). You will be building two solar ovens, and each oven requires two 
  • Metric ruler or measuring tape
  • Straightedge, such as a hard ruler
  • Utility knife
  • Large sheets of cardboard for making the lid for the solar oven. 
  • Metal coat hanger.
  • Pair of pliers, for cutting and bending coat hanger.
  • Sheets of cardboard for making the shelf/heat sink 
  • Sheets of newspaper (several)
  • Aluminium foil
  • A Sufuria for boiling water