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

Test whether spot magnets can help improve the symptoms of an injury.

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

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

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

This science fair project idea investigates how images are influenced by changes in light.

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

This experiment will investigate whether reward or punishment is more apt to motivate people.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

This science fair project idea examines whether music has an effect on a person's ability to complete a simple task that requires concentration.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

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

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.