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

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

In this experiment you will replicate the mummification process by making a hot dog mummy.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Discover whether cold or hot water from the faucet will boil faster on the stove.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

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.

Word color association is just a fancy way to talk about the way we connect colors with words.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

This science fair project idea explores how length affects the weight a bridge can hold.

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

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

This science fair project idea determines which method of hand cleansing is the most effective.

This science fair project idea investigates whether plants can survive being frozen.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!