Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

This science fair project idea investigates the difference in reaction times between boys and girls.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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!

Science fair project that examines condensation and the conditions needed in order for dew to form.

This project examines what types of objects burn and which burn faster and cleaner.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

Here is a kindergarten activity that blends art and science by using magnets, paint, and objects found around the house to create a picture.

Create a habitat for a butterfly right in your own backyard, and build your first grader's science knowledge while you're at it.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

This basketball project explores the best way to make the perfect shot every time.

This science fair project idea identifies trees using a dichotomous key.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

This science fair project idea determines if the temperature of rubber effects how high it bounces.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

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

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

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

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!