This science fair project idea produces varying pitches of sound.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

Do human lie detectors exist? Charge up your powers of observation to see if you can tell a lie from the truth.

This project examines the amount of saltwater required to affect the growth of plants and subsequent effects on growth and development.

Test the combustion of different types of woods.

Free science fair project idea that examines the ergonomics of your environment. Redesign your living space to be better suited to your lifestyle.

Explore the concept of receptive fields and why different parts of our body have different levels of sensitivity.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

How much gas is released into your stomach by your favorite beverages? This project examines which beverages produce the most gas.

This project will examine the relationship between materials and air resistance.

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

Evaluate whether people can raise the temperature of their finger using the power of their thoughts.

This experiment evaluates if personality influences whether a person prefers dogs or cats.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

This experiment investigates whether left-handed test subjects have better memories than right-handed participants.

This experiment evaluates if personality affects the type of movies that people prefer.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

This project compares the strength of one, two, and three-ply toilet paper.

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

This experiment uses Rosenberg's Self Esteem Scale to evaluate if there is a correlation between family size and self esteem.

This science fair project idea explores substances that cause a bubble to last longer.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Compare the ignition rates of various types of flame-retardant materials.

This project determines how much the rebound rates of tennis balls change after ten games.

Make an edible play dough with your child to help her develop her sensory and motor skills.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.