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!

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 demonstrates the principles of reflection through simple experiments involving mirrors and light.

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

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

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!

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

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

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!

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

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

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

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

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

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

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

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

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

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?

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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.

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!

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!