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What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

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

Science fair project that determines how we can change potential energy into kinetic energy.

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

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

This science fair project idea examines various dead zones and investigates the cause and how it can be fixed.

This science fair project idea determines which flower lasts the longest.

This science fair project idea explores if male or female humans are more likely to exhibit some form of color blindness.

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

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

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.

This science experiment tests if dog saliva can really help heal wounds.

introduction to organic chemistry. study what happens when polymer molecules are mixed with borax solution.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Discover whether people can distinguish what a person looks like just by listening to their voice.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Science fair project that explains and demonstrates the parallax principle.

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

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Create an organic plastic product using vinegar and cream. Track decomposition over course of several weeks. Compare decomposition with traditional plastics.

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

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.