Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

This science fair project idea determines what household items are good conductors of electricity.

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

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

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

In this science fair project, students investigate how different colors influence appetite.

This science project investigates the influence of different genres of movies on appetite.

Research what is known about Alzheimer's disease and its treatment, and then prepare a script for television to educate the public.

Science fair project that uses iodine solution to demonstrate how starch is turned into sugar when it is chewed in the mouth.

Science fair project in which you will create your electricity by making a homemade battery using salt water, a nail, and a copper wire.

This science fair project researches the most effective method to cut an onion and stay tear-free.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

Science fair project that studies how the brain transforms man-made symbols into meaningful concepts.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

Science fair project idea examines what is remembered from high school education. Formulate and administer high school curriculum tests to adults over 21.

This project explores what happens to a rubber band when it is heated and cooled.

This experiment investigates if stress alters body temperature.

This fun science project explores the climate change over the course of the history of Earth and helps construct a diorama representing a geologic time period.

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

This science fair project idea compares biodiversity between drops of water.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.

This science fair project idea examines which is the best way to get rid of water stains (stains caused by just water) on fabric.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.