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 boys and girls differ in reflexes.

Determine whether cats have dominant paws. Observe which paw cat uses to reach for treats, feather, and string. Calculate percentage for two paws.

Measure temperature change over time using a variety of insulation materials. Be creative with insulation materials: scarves, yarn, socks, feathers, oil, etc

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

This science fair project idea examines various dead zones and investigates the cause and how it can be fixed.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

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

Science fair project that determines the correlation between wind direction and subsequent weather patterns.

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

This science fair project idea determines which flower lasts the longest.

This science fair project idea produces consumable fresh water from salt water through desalination.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This science fair project idea explores if objects dropped from a high distance will equal a greater impact force than the object dropped from a low distance.

This science fair project idea explores the fastest average speed a human can talk.

Science fair project which examines the chemical reaction of a candle flame with various gases in order to determine the identity of the gas.

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

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.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

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

This science fair project compares the abilities of men and women to understand subtle communication through body language.

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 investigates how a bottom keel helps keep a boat from rocking back and forth.

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

This science fair project idea explores what common compounds can be easily separated out in a centrifuge.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.