Solar Oven

Here's another fun Summer project. We used a pizza box to make a solar oven to reheat our pizza. Simple, fun, and a great Science project.

First place a piece of black paper in the bottom of the box. Then cut the lid as shown below. Cover the lid in aluminum foil to reflect the sun onto the pizza. Cover the opening with plastic wrap to keep the bugs off. Then you just need something to hold the top open and get the right angle to heat the pizza (this is not a photo of the correct angle). 

What have you heated in a solar oven? We are looking for more ideas.