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.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

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.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.