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This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Looking for a fun earth science project on continental drifts? Check out this fun science fair project idea to explore how Pangaea may have broken up.

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

This science fair project idea explores substances that cause a bubble to last longer.

This project examines which type of dance burns the most calories.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

This experiment evaluates if personality affects the type of movies that people prefer.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

The goal of this science fair project was to evaluate the ElectroMagnetic Field produced by Radio Frequency Identification transmitters.

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.

Science fair project that compares tap water and bottled water for the presence of common impurities.

Kids make an electromagnet in this electromagnetic induction experiment to learn about induction, current, and the right-hand rule.

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

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

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

This free science fair project explores the "dirty" relationship between the presence of organic material in soil and water absorbency.

This project examines whether corked bats truly make a ball travel farther than wooden bats that haven't been altered.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

This science fair project idea raises awareness of a real ecological issue.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

This science project allows students to study the psychology of happiness.

Compare the ignition rates of various types of flame-retardant materials.