This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

In this experiment we will be determining whether birds prefer certain colors of seed.

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.

Research what is known about Alzheimer's disease and its treatment, and then prepare a script for television to educate the public.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

Help your middle schooler improve his observation skills by playing this simple observation and spatial memorization game.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Evaluate the ability of a biodegradable dish detergent to increase the penetration of water in hydrophobic soils.

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

Explore the properties of light and color using photographic filters. Take pictures of color spectrum, compare results of different filters.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Determine how salinity affects the circulation of warm and cold water. Note whether the warm water mixes or forms a layer with cold water.

In this experiment you will become familiar with the properties of dry ice while creating interesting effects like ice bubbles!

How well can people recall what they have observed. Test your knowledge in this fun experiment.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

This experiment investigates whether the Ranschburg Effect is observed more frequently in older or younger adults.

Explore how you can achieve magnetic levitation with the Meissner Effect! This cool science project explains formation and applications of a superconductor.

This science fair project idea determines whether the diet and taste preferences of humans relate to their personality.

This science project teaches students to classify different shapes of leaves.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

Do people only "hear" what they want to hear? Explore pareidolia and psychoacoustics with this easy science fair project that pits melody against white noise.

Examine whether males or females are more likely to have a higher center of gravity.

The goal of this project is to create an exciting topographical map out of dough.

This experiment evaluates if the lighting in a room affects the speed at which test subjects perform mental tasks.

Science fair project that uses distillation to convert salt water into fresh water.