Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Explore whether pianists have the tendency to type faster than non-pianists.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

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

Science fair project that demonstrates that rotting food attracts insects that lay eggs on it.

The objective of this experiment is to evaluate the effects of acid rain on plants.

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

Science fair project that demonstrate how abrasions are formed on rocks in nature and the variations between types of rocks.

This project concerns activity happening millions of miles away, on the sun.

Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

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.

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.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

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.

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

The aim of this science fair project is to examine the differences between brands of bottled water and analyze consumer preferences through a taste test.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

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

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

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.

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

Place mushroom caps on poster board, label samples. Check beneath mushroom caps for "prints" of spores. Record and interpret prints left behind.

Science fair project which determines whether your current calorie intake will cause you to lose or gain weight over time.

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 experiment explores how listening in to a one-sided conversation affects concentration.