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.

This fun science fair project for 8th grade demonstrates what Kepler's 3rd law predicts about a planet's orbital period and its distance from the sun.

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.

This project examines whether more expensive golf balls translate into better results on the golf course.

This experiment evaluates how a diet that is rich in "mood-enhancing" foods affects the way people feel over several weeks.

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

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

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

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

This experiment explores the trend of reactivity in the alkaline earth metals as you go down the second column of the periodic table of elements.

In this experiment we will be determining whether birds prefer certain colors of seed.

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

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

In this experiment two environments will be compared: a room with interior design that uses correct Feng Shui versus one with incorrect Feng Shui.

This experiment evaluates if a noisy environment makes it harder for test subjects to perform tasks that require hand-eye coordination.

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

This science fair project idea investigates whether plants can survive being frozen.

This science fair project idea demonstrates how our fingers prune when in water.

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.

This science fair project investigates which of two learning modes most commonly used in school, visual and auditory, is better for information retention.

Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

In this project students determine which instruments composers use to create birdsongs and birdcalls in classical music.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This experiment investigates the relationship between the temperature of a candle and its burn rate.