In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Have your child kick off their summer vacation by making a miniature water slide!

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

In this design challenge, your child will create a parachute for a small toy using typical household items.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

This experiment will evaluate if chewing gum affects students' test performance.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!