When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!