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

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

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

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

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

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.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

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

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

People have favorite flavors, but what about ants? Which ant food is the most popular?

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

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

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

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

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

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

Lead your first grader on a nature walk ... with a scavenger hunt-style twist! They'll try to capture photos that correspond to paint chip colors.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

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