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

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

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

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 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.

This science fair project idea examines whether boys and girls differ in reflexes.

Find out whether a longer airplane will fly farther or a wider paper airplane.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

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

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

This science fair project idea determines if the color of light affects the growth of plants.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.