In this science fair project, young children notice and track changes in trees throughout the year.

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

Determine the growth rates of different types of human hair. Ask volunteers to not cut their hair until the end of experiment. Measure hair length.

Create uphill flow of water by using a siphon. Create vacuum by suctioning one end of tube, and submerge it under water. Watch the direction the water travels.

Will male or female hair grow faster? Find out in this science fair project idea!

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.

This science fair project idea investigates the relationship between memory and age.

This science fair project idea teaches about the size of two different systems: the solar system and an atomic system.

This experiment uses personality assessments to evaluate if certain personality traits are more common in people with unusual first names.

The objective of this sociologically-inclined experiment is to evaluate whether kids' toy preferences are hardwired or develop as they grow.

Science fair project in which you will graft branches from different fruit tree onto a root stalk.

This science fair project idea demonstrates the process of land erosion.

Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

Can the force of air be used to propel a vehicle? This science experiment provides step-by-step instructions to help you answer this question.

This science fair project idea determines the most effective method of preserving food.

In this fun experiment, we'll find out how color affects heat absorption!

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

This science fair project idea investigates whether air has mass and weight.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

This project determines whether hands-on practice, mental practice, or no practice leads to better shooting of free-throws.