This science fair project examines whether ocean water can be made safe to drink.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.

This science fair project idea determines if the color of light affects the growth of plants.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

Science fair project that examines how light wavelengths affect photosynthesis in the aquatic plant: Elodea.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

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

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.

How is NASA able to launch something into orbit around the Earth? Learn about the relationship between gravity, speed, and orbit in space in this cool project!

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

In this design challenge, your child will create a parachute for a small toy using typical household items.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

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

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

Investigate the kinds of memories we tend to store and the emotions we store with them. Determine if memories have a strong emotional component.

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

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

This project researches whether the type of land use affects the water quality of Queenstown Creek.

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.

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

Study the anatomy of the brain and the functions of the corpus callosum. Research split brain surgery and its impact on advances in neuroscience.