This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

This project examines various algorithms to determine the ideal algorithm for a strategy game.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

Science fair project in which you will create your electricity by making a homemade battery using salt water, a nail, and a copper wire.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This science fair project idea explores if male or female humans are more likely to exhibit some form of color blindness.

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

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

Learn about the growing app design field by designing a new or improved app for smartphones.

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

This experiment will explore how manipulating a graph of historical information might reveal new information about data.

This science fair project idea explores whether dogs do look like their owners.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

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

The objective of this science fair project is the compare the rate and efficiency of disaccharide and polysaccharide fermentation by yeast.

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

High school students recreate Michael Faraday's experiment in this cool science fair project that induces current in a coil of wire.

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

This experiment strives to determine if tracking of conservation habits will lead to reductions in a family's electricity and water bills.

Create groups of volunteers based on frequency of playing video games. Compare driving records. Analyze data, interpret findings.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

The project researches how lubricants affect the mechanical advantage of a pulley.