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

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

In this experiment you will use plastic and magnets to test your local soil composition.

This project examines whether corked bats truly make a ball travel farther than wooden bats that haven't been altered.

Determine whether the relationship between a personâs armspan and height are genetic.

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

This science project examines the history of earthquakes and what we can do to prevent future disasters.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

How fast is the wind blowing? This science experiment provides step-by-step instructions to help you answer this question.

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

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Learn how to convert gravitational potential energy into mechanical energy in this fun science fair project idea.

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

This science fair project evaluates if and how eating a large meal affects ability to perform mental tasks.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

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.

This project examines whether sugar substitutes are as sweet as real sugar.

This science fair project idea demonstrates sonar mapping of the ocean floor.

Get this cool middle school science fair project idea on how to conduct a flame test to detect the presence of certain metals in chemical compounds.

Determine whether the application of Febreeze will lower the bacterial count.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Compare different remedies for cooling the mouth after eating spicy food.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

This experiment uses personality assessments to evaluate if certain personality traits are more common in people with unusual first names.