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This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

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.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

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

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

This simple experiment serves as an introduction to the greenhouse effect.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

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

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

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

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

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

This science fair project idea shows kids how to grow mold and whether mold grows better in dry or moist conditions.

Determine whether carpet placed on a lawn will kill grass and weeds. Choose an area of lawn that you would like to remove, record grass that is dead or dying.

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

The goal of this science fair project is to demonstrate magnetic forces of attraction and repulsion using a magnet and everyday objects.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

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

Learn about the factors that influence group conformity.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

Test whether spot magnets can help improve the symptoms of an injury.

The objective of this science project is to investigate why NASA has been using aerogel for the Stardust Project for collecting gas and dust from comets.

The purpose of this science fair project is to build a basic radio.