Research fruits and their ripening stages, follow and document the different stages. Analyze what causes fruit to continue ripening after being picked.

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

Determine the effect of homework on academic performance. Collect grade info at the end of a semester, determine correlation between grades, amount of homework

This experiment explores whether music affects the growth of bacteria and could help figure out better ways to process sewage and other microbe-assisted duties.

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

Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.

The project examines absorbent polymers absorbency in disposable diapers and their unique ecological problem to the environment.

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

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Free science fair project idea examining how different types of water affect plant germination and growth.

Find out whether matte or shiny nail polish lasts longer.

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This research project teaches students about synesthesia, a neurological condition that causes sensory overlap.

Study the effect of music on random rote memory. Examine the practical application of music in learning and education.

Do human lie detectors exist? Charge up your powers of observation to see if you can tell a lie from the truth.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

This science fair project idea determines the most effective method of preserving food.

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

The goal of this science fair project is to demonstrate current methods of detecting counterfeit money, in particular counterfeit detection pens.

This science fair project idea demonstrates the property of bouncing in a fresh new way.

The aim of this science fair project is to examine the differences between brands of bottled water and analyze consumer preferences through a taste test.

In this challenge, students are tasked with creating an insulated cup that will keep beverages colder for longer than a regular cup.

This science fair project idea determines if family members can recognize one another using only the sense of smell.

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

This project explores whether similar type movie scenes are accompanied by music with similar characteristics.

This project compares test subjects' responses to whining and other "attachment" and attention-getting sounds to determine which sounds are most distracting.

Demonstrate the principle of jet propulsion in this science fair project by building a rocket from household materials.