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.

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

This science fair project idea compares biodiversity between drops of water.

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

This science fair project teaches students the differences between fruits and vegetables.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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

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.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

The science project fair idea explores the interaction between your nose, mouth, and brain when tasting a new food or drink.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

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 project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

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

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

This science fair project teaches students about wilting and browning of salad greens.

This science fair project will help students learn about non-vascular plants, such as mosses.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.