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

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

This basketball project explores the best way to make the perfect shot every time.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.

In this science project, baking powder and vinegar are used to simulate the action of a fire extinguisher.

The project investigates which soft drink is worse for your teeth by observing the affect of soft drink on limestone.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

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

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

This science fair project idea produces sounds by creating vibrations using different objects.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

In this project, a magnet is used to collect iron from breakfast cereals.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

In this project, waves of vibrations are experimented with using water in glasses.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

In this project, different childproof containers are tested to see how childproof they really are.

This science fair project idea discovers which parts of the body are more sensitive to touch than other parts of the body.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

The project examines absorbent polymers absorbency in disposable diapers and their unique ecological problem to the environment.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.