This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This science fair project idea experiments with spinning color wheels and optical illusions.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

What happens when colored beams of light mix? You might be surprised.

Learn with makes water molecules work with this fun and easy science activity!

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

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

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This science fair project idea explores whether talking to a plant will help it grow.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!