What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

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

Teach your child how butter is created by shaking up cream the old-fashioned way.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

These gingerbread cookies can be baked by your third grader. Make a warm batch of gingerbread cookies to bring some extra holiday cheer to your home.

This spider mobile activity encourages learning about the science of motion, air currents and art.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

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

This science fair project idea examines which type of insulation holds in the most heat.

Have your child kick off their summer vacation by making a miniature water slide!

In this fun activity, your child will create their very own solar oven to bake s'mores!

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Refresh your third grader's understanding of idioms with this hands-on art activity that encourages him to manipulate clay to represent his favorite idiom.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Cleaning can be a chore, but not with this sudsy experiment!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

This game will help build your child's word bank as she competes with family members for the "Word of the Day" champion title.

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

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

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.