Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

How do organic materials become soil? This science experiment measures what materials biodegrade.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Find out whether packaged seeds actually do expire in this new science fair project idea.

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

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

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

In this project students experiment with making music using only glasses of water.

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

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

Find out whether putting something on top of a plant will inhibit its growth.

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

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

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

This science research project challenges students to think of more effective lobster farming methods.

Do you think heat can affect a plant's growth rate?

Demonstrate how to tell the age of an egg without having to crack it open.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

In this project children practice the scientific method while playing with puffy paint.