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Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

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

Help your kindergarten scientist explore an important part of earth science: how soil retains water.

Help your kindergartener identify and sort eight different kinds of common seeds on this "seed wheel" plate you can use all growing season.

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

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

This science fair project idea determines which method of hand cleansing is the most effective.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

Help your first grader design and create his very own bird feeder out of an empty milk carton.

An home science experiment for older students that teaches about the science behind heat.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

If your mom likes flowers, make her a sweet gift that she'll treasure with this fun craft, a pretty Pressed Flowers Card!

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

Help your child measure breezy weather in her environment by making a wind vane for kids, a simple version of the classic scientific measurement tool.

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.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

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

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.