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.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Make sourdough bread...and learn some colonial history and modern science in the process!

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Help your kindergarten science maven explore the water cycle without getting everything wet.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

This science fair project idea explores whether color affects a person's emotional state.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

This basketball project explores the best way to make the perfect shot every time.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Learn all about balance and motion as your child designs a corn maze!

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

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

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

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

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

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.