Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Discover whether a metal will expand under hot water.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

This project explores ways to prevent static electrical shocks.

How powerful is the reaction between baking soda and vinegar? Find out here!

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

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.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

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

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

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

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

The goal of this project is to create an exciting topographical map out of dough.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.