This science fair project idea produces sounds by creating vibrations using different objects.

Explore the belief in astrology as a predictive system.

Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

This experiment will evaluate if the environments that people work in affect their speed and accuracy in performing mental tasks.

This project analyzes people's emotional responses to images in painting vs similar images in photographs.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

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.

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.