Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Find out if most people can distinguish the difference between tones on different instruments.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

In this physics project, you'll learn how to find the maximum height of a projectile using some math and trigonometry.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

Check out this cool middle school science fair project idea to find the difference between organically grown and commercial brands of foods.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Would you be able to tell the difference between colored contacts and natural eyes from a normal distance? Find out in this science fair project!

This experiment evaluates if personality influences whether a person prefers dogs or cats.

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

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

Determine whether people can actually taste the difference between âhealthyâ cookies and the traditional version.

In this "paper and pen" science fair experiment, students will research the difference between standard time and astronomical mean time.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Scavenger Hunt! Check out this fun science fair project idea to explore the difference between opaque, translucent, and transparent objects around your house.

Check out this cool science fair project idea to explore short and long term memory and whether there is gender differences in memory.

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

Check out this fun science project idea on ecological succession and learn the main difference between primary and secondary succession.

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.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Measure the porosity of rocks by submerging them in water. Measure how much water each rock "drank," by measuring the difference in water volume.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.