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Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

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

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Do different types of oil mix or stack? Find out in this science fair project idea!

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

Discover whether cold or hot water from the faucet will boil faster on the stove.

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

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

In this science fair project you will make a model of a cell membrane using very simple material.

This science fair project teaches students about wilting and browning of salad greens.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This science fair project idea explores whether white light can be separated into different colors.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

This science fair project will help students learn about non-vascular plants, such as mosses.

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

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.