Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

Science fair project that determines whether mass and weight are the same or different.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

This science project teaches students to classify different shapes of leaves.

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 fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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.

This experiment tests which gender is better at catching how a magician performs his tricks.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Find out which type of sponge holds the most water.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

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

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