In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

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

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

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.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Try this fun and simple activity to help nurture your child's observation skills and nourish a growing love of science!

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Make edible amber fossils with your second grader to explore the fascinating world of science!

Construct and experiment with a periscope using reflected light rays to gather an image.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Try this chemistry experiment with your curious kid and get some "shocking" results!

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.