Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?

This experiment explores whether caffeine improves athletic performance.

This experiment evaluates how a diet that is rich in "mood-enhancing" foods affects the way people feel over several weeks.

This science fair project idea determines the probability of a coin landing heads or tails.

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

This science fair project idea explores whether talking to a plant will help it grow.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Test whether spot magnets can help improve the symptoms of an injury.

Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

Research different measurement systems, design your own new or improved system that can measure something difficult to measure with traditional systems.

Study how liquids separate into layers by creating a liquid gradient, different density liquids separate into layers in a graduated cylinder.

Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.

In this experiment you will become familiar with the properties of dry ice while creating interesting effects like ice bubbles!

Observe which kind of fresh long-stemmed flower will last the longest after being picked.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

This science fair project idea assesses the effect of music on work performance.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

Test your friends to find out if you can replicate the placebo effect's incredible results.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Determine which metal has the highest rate of conductivity.

Can you win a staring contest? Would your performance be influenced by your eyesight? Find out in this science fair project idea!

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

This science fair project idea investigates how magnetism can defy the force of gravity.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.