In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

This science fair project examines how carnivorous plants digest insects, and whether the plant can use nitrogen in the soil to compensate for lack of insects.

This project examines whether corked bats truly make a ball travel farther than wooden bats that haven't been altered.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

Do human lie detectors exist? Charge up your powers of observation to see if you can tell a lie from the truth.

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

The goal of this science fair project was to examine how different angles of decline affect the tipping point of a vehicle.

Check out this fun science project idea on ecological succession and learn the main difference between primary and secondary succession.

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Polymers remove oil from contaminated waters. The purpose of this science project is to test the effectiveness of a polymer in cleaning up an oil spill.

This science fair project idea produces consumable fresh water from salt water through desalination.

This science fair project idea explores the fastest average speed a human can talk.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Learn about the right-hand rule for magnetic force! Use a cathode ray tube in this physics experiment to see a magnetic field's effect on an electron beam.

Free science fair project idea that examines the ergonomics of your environment. Redesign your living space to be better suited to your lifestyle.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Explore the belief in astrology as a predictive system.

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

This science fair project idea explores if male or female humans are more likely to exhibit some form of color blindness.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Here's a science activity to help your child investigate how seeds are designed to travel.

Science fair project that determines the correlation between wind direction and subsequent weather patterns.

Will the shape of an ice cube impact how fast the ice melts?