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

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

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This science fair project idea experiments with spinning color wheels and optical illusions.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Find out which type of sponge holds the most water.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

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.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

In this science fair project, students use the streak test to tell minerals apart from each other.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

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

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

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!

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

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

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

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.