This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

In this experiment, the weight of aluminum cans will be compared.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Test whether plants can grow without sunlight and water.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

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.

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This experiment tests which gender is better at catching how a magician performs his tricks.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Celebrate autumn with a seasonal bash. Welcome the fall with a festive party for your little one and her friends, full of crafts, snacks and fun games.

The goal of this project is to create an exciting topographical map out of dough.

Create a bee garden to help shelter bees in your area.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Transform your uncomfortable wooden shoes into charming mini planters!

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.