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

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

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

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

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.

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

Explore convex and concave objects and how they reflect light.

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

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

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

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.

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

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

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

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

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

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

This science fair project idea examines the differences between bottle water, filtered water, and tap water.

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.

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

This science experiment has students test whether a snail moves faster on concrete or dirt.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

This science fair project idea explores how water and ice can change the form of rocks.

This science fair project idea shows how a vibrating object transfers energy to whatever it touches.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.