Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Start your toy engines -- this is going to be a fast and friction-filled race!

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Is it a square or a circle? See if you can trick your friends with this zany science project!

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.