In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

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.

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

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

In this project students experiment with making music using only glasses of water.

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

This science fair project idea explores how length affects the weight a bridge can hold.

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.

In this project children practice the scientific method while playing with puffy paint.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

This science fair project idea examines the reason boats are shaped and engineered.

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!

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Have your child kick off their summer vacation by making a miniature water slide!

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

Try this chemistry experiment with your curious kid and get some "shocking" results!

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

In this fun activity, your child will create their very own solar oven to bake s'mores!

In this experiment we will be determining whether birds prefer certain colors of seed.