The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.