Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This science fair project investigates why the number of visible stars changes from place to place.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.

This project compares the strength of one, two, and three-ply toilet paper.

The Galileo inclined plane physics experiment was one of the first ways scientists calculated acceleration due to gravity. Do it yourself in this project!

In this science fair project, students create their own miniature salt flats at home.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Discover the force of water! This article provides step-by-step instructions for creating your own science experiment.

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

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

In this project children practice the scientific method while playing with puffy paint.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

Are you ready to pilot your own airplane? Well, then take to the skies with this high-flying project!

Examine the impact of insecticides on plant growth.

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

Science fair project which compares the rates of photosynthesis for various light sources. Which type of light will be best for photosynthesis and why?

This science project has students study the idea of human beauty.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Discover if soda geysers will erupt when using regular vs. diet cola and which candies will create eruptions.

This science fair project idea compares biodiversity between drops of water.