I can construct a simple, yet powerful solar oven.
Estimated Time for The Week:
20-30 minutes
- a box with an attached lid (pizza box or shoe box)
- scissors
- aluminum foil
- black construction paper (or color a piece of paper black)
- clear wrap
- tape
- paper plate
- ruler
- straw or wooden spoon
- marshmallows (optional)
- graham crackers (optional)
- chocolate bars (optional)
Go to https://www.icanteachmychild.com/make-your-own-solar-oven/ to see pictures.
- Draw a square on the lid of the box that is 1 inch smaller than the box on all sides. Ask an adult to help cut three sides of the square to make a flap. Fold the flap so that it stands up when the lid is closed.
- Cover the inner side of the flap and the inside of the box with aluminum foil. Make sure the foil is shiny side up.
- Use clear plastic wrap to create an airtight window for sunlight to enter into the box.
- Do this by opening the box and taping a double layer of plastic wrap over the opening you made when you cut the flap in the lid.
- Leave about an inch of plastic overlap around the sides and tape each side down securely, sealing out air.
- Place the black construction paper in the bottom of the box on top of the aluminum foil.
- Place your paper plate inside the box.
- To make s’mores, layer the chocolate bars and marshmallows on top of graham crackers and place on the plate.
- Close the box lid, propping up the flap with a ruler, straw, or wooden spoon.
- Place your box outside in the sun, using your oven between 11:00 a.m. and 3:00 p.m. when the sun is the highest. Adjust the flap until as much sunlight as possible is reflecting off of the foil to the window area.
- Check your oven after approximately 30 mins to see if any changes have occurred to your chocolate or marshmallows.
- Enjoy your homemade s’mores! Be careful when taking the plate out of the oven, it will be hot!
- Reflect on this activity:
- Why did you line your oven with aluminum foil?
- What purpose did the black construction paper serve?
- Why would cooking times vary throughout the day?
- How hot do you think your oven gets? (You could check it with an oven thermometer, if you have one.)
Optional Extension Activity:
- Try heating other food in your oven - toast, hot dogs, or nachos!
- Try a different colored paper other than black like yellow, red, etc. What happens?
FUN FACT: The largest s’more weighs 267 pounds and was made in Pennsylvania on May 31, 2014. There were a total of 104 volunteers that worked together to make the s’more.