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

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

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

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

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.

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

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 free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.

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

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

This project examines the amount of saltwater required to affect the growth of plants and subsequent effects on growth and development.

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.

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

This science fair project idea investigates how color affects temperature.

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

This science fair project evaluates which sense produces the fastest response time: hearing, touching, smelling or seeing.

The goal of this science fair project was to evaluate the ElectroMagnetic Field produced by Radio Frequency Identification transmitters.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

How does light affect plant growth? Do different colors of light work better than others? Find out in this classic science fair project idea.

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

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

Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

This science project allows students to study the psychology of happiness.

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.

Are red apples really sweeter than green apples? The objective of this science fair project is to test the theory with quantitative evidence.

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

This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.

Science fair project that demonstrates how stalagmites and stalactites are formed.