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

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

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.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

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

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

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