A reflective hot dog cooker can be built from a cardboard box, tin foil, and posterboard. Sunlight hits the reflective surface and focuses on the hot dog held in the center. Students can work in pairs or individually if there are enough materials.
http://energyquest.ca.gov/projects/solardogs.html
I made one of these today. Dd is five and tried to help, but five is too young for this project - at least to make the cooker.
We'll see about the actual cooking of the hot dogs.
http://energyquest.ca.gov/projects/solardogs.html
I made one of these today. Dd is five and tried to help, but five is too young for this project - at least to make the cooker.
We'll see about the actual cooking of the hot dogs.





