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

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

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

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.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

Science fair project that creates a pamphlet to help others learn about Epilepsy, its causes, symptoms and treatments.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.

The objective of this science project is to determine whether a sweet tooth is most likely an inherited trait or a learned behavior.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

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

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

In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.

This fun middle school science fair project idea helps student discover the concepts behind deep sea diving and how Cartesian divers work.

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

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

Calculate the mass of the Earth using the sidereal and calendar period of the Moon and Newton's Law of Universal Gravitation in this physics science project!

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

This science fair project demonstrates the "power of conformity".

This science fair project idea examines the reason boats are shaped and engineered.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

Learn how to use the Punnett Square to predict the gene combinations of dominant and recessive traits in this fun and easy genetics science project!

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.