======Pizza Box Solar Oven====== **Materials: **{{$demo.materials_description}}\\ **Difficulty: **{{$demo.difficulty_description}}\\ **Safety: **{{$demo.safety_description}}\\ \\ **Categories:** {{$demo.categories}} \\ **Alternative titles:** Solar Cooker ====Summary==== {{$demo.summary}} ====Procedure==== - Cut three sides of a square flap on the lid of a pizza box, leaving about two inches from the edges. - Fold the flap back and cover the inside with aluminum foil (shiny side out), taping it securely. - Line the bottom and sides of the pizza box with foil. - Cover the opening in the lid (where the flap was cut) with plastic wrap, taping it tightly to create a sealed window. - Place food on a paper plate inside the foil-lined base of the box. - Close the lid and adjust the foil flap so it reflects sunlight into the box, propping it open with a ruler. - Position the box outside with the flap facing the sun, and allow food to warm or cook over 1 hour or more. ====Links==== How to Build a Solar Oven | The Science of Cooking - SciShow Kids: {{youtube>nsXhfpE5NCY?}}\\ Solar Oven Science Project - We Are Teachers: {{youtube>m4tNG64IDc0?}}\\ 📄 Solar Cooker- Griffin Museum of Science + Industry: [[https://www.msichicago.org/science-at-home/hands-on-science/solar-cooker]]\\ ====Variations==== * Test different foods to see which cook fastest (marshmallows, cheese, chocolate, etc.). * Add black construction paper to the base of the box to absorb more heat. * Try adjusting the angle of the foil flap to maximize reflected sunlight. * Compare results on sunny, cloudy, and partly cloudy days. ====Safety Precautions==== * Solar cookers can get very hot; use oven mitts or tongs to remove food. * Do not leave the cooker unattended in direct sunlight. * Use caution with sharp scissors when cutting the box. * Avoid using foods that spoil quickly if cooking times are long. ====Questions to Consider==== * How does aluminum foil help increase the cooker’s effectiveness? (It reflects and concentrates sunlight into the box.) * Why is the plastic wrap important? (It traps heat inside like a greenhouse.) * How does adding black paper affect heating? (Black absorbs heat more efficiently than reflective surfaces.) * Why does cooking take longer in a solar cooker than in a regular oven? (The heat is less intense and depends on sunlight conditions.) * How could solar cookers be used in real-world situations? (They provide a sustainable cooking method where electricity or fuel is limited.)