This science fair project idea determines which method of hand cleansing is the most effective.

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.

This science project teaches students to classify different shapes of leaves.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

Combine science with reading and art to help your first grader create an attractive holiday gift for a beloved friend or relative.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Study science with your first grader in this arts and crafts activity that models the reason why fall leaves change color with some paint and crayons.

Use simple materials to build a "worm hotel" with your kindergarten soil scientist...and see what worms really do all day.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

In this activity, you'll send your kindergartener on a scavenger hunt to find sounds and create a sound recording. Here's how!

This project determines what category of person is most likely to be ticklish.

In this challenge, students are tasked with creating an insulated cup that will keep beverages colder for longer than a regular cup.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Help children understand the power of germs and the importance of hand washing with this visual activity that introduces the concept of scientific inquiry.

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

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

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!