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Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

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

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.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Science fair project that identifies the nature of ionic and covalent bonds and determines how ionic and covalent compounds differ.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

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 which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

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.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

This project examines the amount of saltwater required to affect the growth of plants and subsequent effects on growth and development.

The goal of this science fair project was to examine how different angles of decline affect the tipping point of a vehicle.

Design an improvement for an existing website. Program improved feature, get website owner to implemement new design.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

In this design challenge, students will be tasked with creating a bouncy ball polymer!

This experiment will explore the best way to create a perfect soft-boiled egg.

This science fair project idea shows kids how to grow mold and whether mold grows better in dry or moist conditions.

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

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

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

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

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.