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

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

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

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

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.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

The goal of this science fair project is to investigate the effect of irradiation on the germination and growth of vegetables, such as the tomato plant.

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

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

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

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 how how do readers predict what events will happen next while reading a story.

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

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

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 investigates whether plants can survive being frozen.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

The project determines which type of birds prefer which type of birdseed.

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.

Which bread molds fastest? Explore the different kinds of breads and how quickly they mold, along with the role of preservatives.

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

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

This science fair project idea determines if the color of light affects the growth of plants.

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

Will people still feel hungry once they eliminate grains from their meal? Find out in this science fair project idea!

This project examines the vulnerability of fruit flies, Drosophila melanigaster, to irradiation. Will exposure result in mutations?