In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.