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This biodiversity project examines the biodiversity in your own backyard.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

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.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

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

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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

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.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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!

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

This science fair project idea provides evidence that air is everywhere and takes up space.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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

Make a backbone model to explore human anatomy and life science.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

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

Have your child kick off their summer vacation by making a miniature water slide!