What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

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

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

Use sticks and stones to create create an outdoor version of tic-tac-toe!

Help your kindergarten scientist discover relative size, density, and buoyancy with this fun, pumpkin science project!

The weather is a key kindergarten science concept. With this activity your child will learn about wind direction and create a self portrait, too!

Recycling may be a confusing concept for your little one, so take the time to teach them the magic of compost - right in your own backyard!

Do this activity to help your kids see how seeds contain "baby" versions of big plant stems, roots, and leaves.

Satisfy your kindergartener's fascination of different sounds with this easy science project, where they'll use their ears instead of their eyes to identify sounds!

Children are imaginative story-builders. Create a shoebox habitat with your child to put those budding creative instincts to good use.

Make a bear cave for your child to play and explore, learning about bears and winter hibernation.

Here's a simple science activity that will help your child better understand how wells bring us water.

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.

What happens when light hits a hard surface? Find out by conducting a simple light reflection experiment with your preschooler.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

In this hands-on activity, kids learn what it takes to foster seedlings into full-grown plants, all in a regular old soda bottle!

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

Give your child a chance to experiment with how things grow. And throw in something extra to up the fun factor even more...her very own grass pet!

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

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

Let your young adventurer go bug hunting in the great outdoors with their very own bug net!

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Reuse and recycle cardboard tubes to make spooky spiders, kooky caterpillars, wacky worms, and more.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.