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.

Determine whether people can actually taste the difference between âhealthyâ cookies and the traditional version.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.

This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

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

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Find out which kind of bubble wrap fares best when put in impact.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

In this activity your child will create their very own marble maze!

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.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

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

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Examine how a battery can be made from everyday materials.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

In this experiment we use Scotch Guard to make sand that resists water.

Are you able to endure long periods of exercise? Find out if snorers can exercise longer than non-snorers.

This science fair project idea investigates how color affects temperature.

This science fair project idea investigates food preference of birds.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

This science fair project idea focuses on the use a conductivity device to determine the ionic concentrations of hard water.

Start your toy engines -- this is going to be a fast and friction-filled race!

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this 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?