Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

This science fair project idea designs safe bicycle routes using GPS.

This science fair project idea investigates the relationship between memory and age.

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

This science fair project idea investigates food preference of birds.

This science fair project idea determines how your body responds to allergies.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Science fair project that determines which foods and drinks contain the highest amount of glucose.

This science fair experiment examines the relationship between gender, age, and smiling.

This science fair project idea explores how far the average human can see.

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

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

In this science fair project, students make their own rain gauge to measure rainfall.

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

Check out this cool science fair project on identifying rocks and minerals for kids.

This science fair project collects information on the Internet about yourself and others.

Science fair project that designs a video game that requires players to use relevant skills.

This science fair project idea investigates how the shape of an object affects drag.

This science fair project idea identifies and understands adaptations in birds.

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

In this science fair project, students evaluate the alleged pain-relieving properties of amber.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

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

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

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

In this science fair project, students test how objects float and sink in liquids of different densities.

Science fair project that determines whether mass and weight are the same or different.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

This science fair project ideaexplores whether cooking food destroys potential vitamin levels.

Science fair project that cultivates slime mold and monitors the stages of its development.