This science fair project idea produces varying pitches of sound.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.

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

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

In this challenge, students are tasked with creating an insulated cup that will keep beverages colder for longer than a regular cup.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

In this activity your child will create their very own marble maze!

Learn whether writing things down really makes things easier to remember.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

This science fair project idea explores which fruit molds the fastest.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

This science fair project idea explores alcoholic fermentation at work by making your own soda.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This science fair project idea investigates if fats add to the flavor of food.