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

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.

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

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

This science fair project idea determines effective strategies to help students stay awake and attentive.

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

This snowman's not abominable, he's adorable! Your child can bring her very own snowman to life while practicing how to create texture.

Do you think heat can affect a plant's growth rate?

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

Explore the role of starches as thickening agents in food, and learn about the chemical properties of starch in the process.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

In this science fair experiment, middle school students evaluate whether tone of voice can influence our ability to remember a list of everyday objects.

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.

Science fair project that designs a video game that requires players to use relevant skills.

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

Test your friends to find out if you can replicate the placebo effect's incredible results.

Discover which method for odor removal words the best for stifling refrigerator odors.

Find out whether pacing in long-distance running actually acquires for drastic changes in finishing times versus running super-fast at the start.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

Determine how salinity affects the circulation of warm and cold water. Note whether the warm water mixes or forms a layer with cold water.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.