Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This project compares test subjects' responses to whining and other "attachment" and attention-getting sounds to determine which sounds are most distracting.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

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

This science fair project idea demonstrates that plants give off water.

This science fair project idea explores whether dogs do look like their owners.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

This experiment uses a voice recorder to monitor the progression of a message in the telephone game as it deviates from the original.

This science fair experiment examines the relationship between gender, age, and smiling.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

This experiment investigate whether children in different age groups learn better from a computer program or a human teacher.

Explore convex and concave objects and how they reflect light.

This project examines whether people's taste perception is influenced by what they see.

In this project children practice the scientific method while playing with puffy paint.

This experiment evaluates how much influence an enticing package has on childrensâ willingness to try a new snack.

This science fair project idea compares the mass and density of objects.

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Learn about nature by making your own mini moss garden.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

This project compares different liquids and the freezing, melting and boiling points of liquids.

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