Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

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!

The objective of this science project is to determine the length of time for different seeds to germinate.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

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

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

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Introduce your child to science with something they see everyday--their shadow!

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

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?

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

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.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Challenge your young dinosaur lover to examine dinosaur footprints and then create their own dinosaur fossil in this hands-on activity.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

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.

Put an oatmeal box, a flashlight, and some construction paper together and you have the makings of an incredibly cool bedroom planetarium!