Will the shape of an ice cube impact how fast the ice melts?

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

In this design challenge, students will be tasked with creating a bouncy ball polymer!

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

In this challenge, students are tasked with creating a car that can be powered by a balloon!

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

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

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

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

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.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.