Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

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

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Use a dichotomous key to identify plants or animals.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

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

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

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

Determine how good we are at direct and indirect observation.

Cleaning can be a chore, but not with this sudsy experiment!

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

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

Explore the relationship between personality traits and birth order effects.

Learn about the horizontal and vertical motion of a projectile in this cool physics science fair project idea for advanced middle and high school students.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

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.

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

This project researches whether the type of land use affects the water quality of Queenstown Creek.