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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!

Help your child celebrate the summer and the sun by making a sandy seascape.

Use pepper and soap to discover some fun facts about the properties of water.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

The fish most kids see is usually filleted, and it's hard to see how it came from a lake or sea. This cool gyotaku activity blends life science with art!

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

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

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

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

This craft is an excellent way to learn about African-American history, and it also provides fine motor practice.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

In this design challenge, your child will create a parachute for a small toy using typical household items.

Planning a beach vacation? Here's a cool nature craft you can make in the sand with your child.

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

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.