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.

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

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

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!

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

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.

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

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

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

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

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

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!

Is it a square or a circle? See if you can trick your friends with this zany science project!

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 second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

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.

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

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

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.

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.