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

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Examine the effect of pressure on carbonation in soda.

This science experiment tests if dog saliva can really help heal wounds.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

Discover which fabrics shrink the most in the wash and why.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

This science fair project idea identifies trees using a dichotomous key.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Science fair project that determines whether mass and weight are the same or different.

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

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

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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

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

This experiment tests which gender is better at catching how a magician performs his tricks.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

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.

Construct batteries that make electricity from fruits with this fun science fair project.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

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

This science fair project investigates why the number of visible stars changes from place to place.

Find out whether matte or shiny nail polish lasts longer.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

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

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.