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

Discover if soda geysers will erupt when using regular vs. diet cola and which candies will create eruptions.

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

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

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Research history of programming language. Design a new or improved programming language. Create a display that illustrates the features and improvements.

Science fair project that determines how we can change potential energy into kinetic energy.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

This science fair project examines the different composition of fungi and plants.

This experiment will examine and precisely measure the amount of sugar in various sodas.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Check out this cool science fair project idea to learn why it is important for kids to eat healthy foods like fresh fruits and vegetables.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

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

This science fair project idea shows kids how to grow mold and whether mold grows better in dry or moist conditions.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

This basketball project explores the best way to make the perfect shot every time.

This science fair project idea produces sounds by creating vibrations using different objects.

Explore the belief in astrology as a predictive system.

Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

This experiment will evaluate if the environments that people work in affect their speed and accuracy in performing mental tasks.

This project analyzes people's emotional responses to images in painting vs similar images in photographs.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.