Do human lie detectors exist? Charge up your powers of observation to see if you can tell a lie from the truth.

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

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

This science fair project idea raises awareness of a real ecological issue.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Study emulsifiers and learn how they are used in food science, medicine, soaps and cosmetics. Identify which materials are created using an emulsifier.

Which type of sunglass lenses gives you the best protection from the sun's harmful UV rays? Find out in this cool science project!

Science fair project that examines the benefits of the plant enzyme: pectin methyl esterase (PME). Where is PME found in the plant? What does it do chemically?

Measure temperature change over time using a variety of insulation materials. Be creative with insulation materials: scarves, yarn, socks, feathers, oil, etc

This project examines whether and what associations exist between numbers and letters and colors.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

Explore the belief in astrology as a predictive system.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

Find out whether a longer airplane will fly farther or a wider paper airplane.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Study blind spots, run experiments in blind spot detection, design an original blind spot experiment, test your design on volunteers

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

Science fair project that examines the relationship between fluid flow rate, pressure, and resistance.

This science fair project idea determines the probability of a coin landing heads or tails.

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

This project explores how well couples convey complex emotions such as envy and pride to one another solely through the sense of touch.

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.

This experiment uses a voice recorder to monitor the progression of a message in the telephone game as it deviates from the original.

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

The goal of this science fair project is to attempt to build a perpetual motion machine and analyze the Laws of Thermodynamics.

Research long-term effects and draft a questionnaire about frequency of marijuana use and average annual income. Interpret findings in a detailed report