This science fair project idea studies whether a religious sleeping schedule relates to a higher IQ.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

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

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

This experiment evaluates if personality influences whether a person prefers dogs or cats.

Free science fair project idea examining how different types of water affect plant germination and growth.

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.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

This interactive project invites science fair-goers to participate in examination and recording to demonstrate the importance of firsthand observation.

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

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

This science fair project studies whether DSLR and Point-and-Shoot cameras work the same way under all conditions.

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

This experiment evaluates whether frequent texters have better finger dexterity compared to people that rarely use text messaging.

This science fair project idea studies whether eating a hearty breakfast before and exam will get them better test scores.

This science fair project idea studies the acidity of rain water and whether the acidity is the same on all rainy days or does it fluctuate.

Learn whether writing things down really makes things easier to remember.

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.

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.

This science fair project studies which color(s) of flowers butterflies & bees are attracted to and if color plays a role in flower selection for pollination.

This experiment investigates whether left-handed test subjects have better memories than right-handed participants.

Investigate which substances are most effective at removing salt from water.

This science fair project idea explores whether certain physical and mental traits run in the family.

Determine the effect of homework on academic performance. Collect grade info at the end of a semester, determine correlation between grades, amount of homework

Investigate the kinds of memories we tend to store and the emotions we store with them. Determine if memories have a strong emotional component.

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

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.