This science fair project idea experiments with spinning color wheels and optical illusions.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Get a cool middle school chemistry project idea on how to determine whether a physical or a chemical change has taken place.

The goal of this science fair project was to evaluate the ElectroMagnetic Field produced by Radio Frequency Identification transmitters.

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.

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

What colors can dogs see? Do they only have black and white vision, or can they see other colors too? Find out in this cool science experiment!

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

Science fair project in which you will graft branches from different fruit tree onto a root stalk.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Kids learn about the color rendering index by finding the best lightning for makeup in this fun and original physics science fair project idea.

Do you think heat can affect a plant's growth rate?

What does yeast eat? Sugar, of course. But yeast also has some powerful enemies in the form of antifungal agents! Kids test them out in this fun yeast lab.

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Learn how different types of soil affect how animal tracks form in this experiment!

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

Research hemispheric brain dominance in order to determine if you have a dominant side. Test foot, ear dominance. Record observations.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Determine whether the application of Febreeze will lower the bacterial count.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

Explore concepts in current and coltage with these Van de Graaff generator experiments.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.