How well can people recall what they have observed. Test your knowledge in this fun experiment.

People have favorite flavors, but what about ants? Which ant food is the most popular?

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

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.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Get a fun high school physics science fair project idea one of the states of matter called plasma and the applications of this unique coil.

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.

This project involves the programming and development of a 3D Rubik's Cube application using C++.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

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

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Science fair project that uses distillation to convert salt water into fresh water.

This project analyzes people's emotional responses to images in painting vs similar images in photographs.

Explore the belief in astrology as a predictive system.

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

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

Study blind spots, run experiments in blind spot detection, design an original blind spot experiment, test your design on volunteers

Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.

Science fair project that demonstrates the principle of conservation of mass by conducting a chemical reaction inside a sealed Ziploc bag.

Science fair project that examines the relationship between fluid flow rate, pressure, and resistance.

Your mission, if you choose to accept it, is to construct a parachute that will deliver an egg safely to the ground. Good luck!

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Construct and experiment with a periscope using reflected light rays to gather an image.