This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

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

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Teach your child how butter is created by shaking up cream the old-fashioned way.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Grow borax crystals and get your child excited about Earth science with this crafty science 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.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Determine if gender affects the ability to identify different smells.