This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

This science project allows students to study the psychology of happiness.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

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

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

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.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

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

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.