How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Check out this cool middle school science fair project idea to find the difference between organically grown and commercial brands of foods.

Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

Examine the connection between temperature and chemiluminescence.

This experiment explores the most common colors that appear among a sample of crossbred guppies.

Build a bird feeder science craft that brings birds to your yard, and a smile to the whole family's face.

Test your skills as a weather forecaster, and learn some science terms on the way!

Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

Demonstrate how tracks are formed by pressing your hand into a cornmeal mixture, then reverse the process and make prints of the track.

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

In this experiment you will evaluate whether praise improves athletic performance.

Use sticks and stones to create create an outdoor version of tic-tac-toe!

This experiment evaluates if people of a specific gender or age more likely have an elevated number of taste buds, allowing them to taste what others cannot.

This science fair project idea determines how your body responds to allergies.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

This science fair project idea investigates whether rocks containing geodes can be determined from the outside.

Does 100% Fruit Juice have more Vitamin C than juice with artificial ingredients? Find out in this science fair project idea!

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

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

Take a nature walk in your backyard or local park to find one object for every letter of the alphabet. Then put them together in this handy nature book.

Looking for a project on fossils? Check out this fun science fair project idea to understand the process of coal formation and fossils part in that formation.

Measure the porosity of rocks by submerging them in water. Measure how much water each rock "drank," by measuring the difference in water volume.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

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

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

This project compares different liquids and the freezing, melting and boiling points of liquids.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

Study how liquids separate into layers by creating a liquid gradient, different density liquids separate into layers in a graduated cylinder.