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How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

This science fair project examines how seeds hitchhike on animals and clothing.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

This science fair project idea investigates the difference in reaction times between boys and girls.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

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.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

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 examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

This science fair project idea determines what household items are good conductors of electricity.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.