Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This science fair project idea examines whether boys and girls differ in reflexes.

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.

Will the shape of an ice cube impact how fast the ice melts?

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

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

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

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

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

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.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.