Discover which fabrics shrink the most in the wash and why.

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

In this activity your child will create their very own marble maze!

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Construct batteries that make electricity from fruits with this fun science fair project.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.