This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Discover the interactions of synthetic dyes and natural dyes on natural and artificially-made fabrics.

Should you use âFITâ Fruit and Veggie Wash or plain water to wash your produce? Find out in this science fair project idea.

This science fair project idea demonstrates how our fingers prune when in water.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

Check out this fun science fair project idea to explore the process of diffusion in a cell and learn the difference between osmosis and diffusion.

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

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

Find out whether matching resonant frequencies can cause objects to shatter.

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 investigates why the number of visible stars changes from place to place.

The objective of this science fair project idea is to explore which brands of "anti-fade" shampoos work the best to keep hair color looking fresh.

Find out whether matte or shiny nail polish lasts longer.

This experiment will explore whether adding different substances to a gel affects its strength.

Students identify variables that affect the duration of high school romances and analyze data to predict the success or failure of ongoing relationships.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

If you hold a fire up to a balloon, it pops instantly. What if you could prevent this from happening? In this project, we do just that.

In this experiment a spectrometer is used to analyze the light emitted by burning ion solutions.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

This is a fun and inexpensive project and it's a great way for your child to build basic geometry skills, like shape recognition and pattern/angle familiarity.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Could there be toxic chemicals lurking in the cupboards and closets of your home?

This science fair project idea examines whether people can decode scrambled messages.

This project examines how temperature affects the volume of gas in balloons.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

In this experiment, recycled objects are separated to demonstrate how mixtures are made and the variance in the physical properties of their ingredients.