What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

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

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

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!

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Combine science with reading and art to help your first grader create an attractive holiday gift for a beloved friend or relative.

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

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Conduct a simple experiment with your child to study how dirt tracks change as they age in this 1st grade science activity.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Using a glass fishbowl, you and your kids can create a low-humidity, open-topped terrarium perfect for easy care, drought-tolerant succulents.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

This science fair project idea demonstrates that plants give off water.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!

Satisfy your sweet tooth with this easy summer activity! Make homemade ice cream and let your child practice his science skills.

Allow your first grader to get his artwork outdoors this summer by letting him create a garden art box for his arts and crafts supplies.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.