Why are some pennies shiny and others dark and dull? Find out with this cleaning copper coins experiment, which transforms dark pennies to bright ones.

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

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

This experiment investigates whether the Ranschburg Effect is observed more frequently in older or younger adults.

In this fun experiment, we'll find out how color affects heat absorption!

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

In this science fair experiment, middle school students evaluate whether tone of voice can influence our ability to remember a list of everyday objects.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Science fair project that compares the properties of different fabrics to determine whether natural or synthetic fabrics are better at wicking away moisture.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

High school kids learn about fruit fly ethology in this cool lab that determines fruit fly movement and behavior under different conditions. Check it out.

This experiment evaluates how a diet that is rich in "mood-enhancing" foods affects the way people feel over several weeks.

Test the effects of left and right handedness on writing speed and penmanship. Volunteers hand-copy the same paragraph of text, which samples look neater?

Here's a science and nature activity to help your kindergartener get outdoors and learn about the structure of leaves.

This experiment investigates whether there are certain sounds that affect men and women differently

This experiment investigates whether font choice affects peoplesâ ability to remember the information that they read.

How does light affect plant growth? Do different colors of light work better than others? Find out in this classic science fair project idea.

This experiment will test whether people are better auditory or visual learners and if there is a link between gender and either of these learning types.

Test whether spot magnets can help improve the symptoms of an injury.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

This experiment investigates whether the psychological phenomenon of the halo effect can be used to explain people's perceptions of others.

This science project has students study the idea of human beauty.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.