This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

In this activity, learners will discover how to make a basic water filtration system using common materials found around the house or outside.

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

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

This science fair project idea examines whether boys and girls differ in reflexes.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Jump into Japanese culture with your child by making your own calligraphy scroll. Try your hand at painting kanji on paper just like Zen masters of old!

With a handful of craft supplies, your fourth grader can capture some of the artistic magic of the ancient Maya.

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

This science fair project idea investigates if fats add to the flavor of food.

This activity will help your child tackle those tricky fraction word problems by way of a hands-on method.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

These secret code activities are fun, and also provide fourth graders with great opportunities to practice language development and logical reasoning.

In honor of Black History Month, this activity encourages your child to focus on African American inventors, and do a little inventing of his own.

Here's an innovative math puzzle that you can create with your fourth grade math student.

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

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.