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.

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

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!

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 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.

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!

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

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.