Discover if soda geysers will erupt when using regular vs. diet cola and which candies will create eruptions.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

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

Examine the effect of pressure on carbonation in soda.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

This science fair project teaches students the differences between fruits and vegetables.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

This science project examines the thermal properties of several major greenhouse gases.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

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

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

Help your middle schooler improve his observation skills by playing this simple observation and spatial memorization game.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

This middle school science fair project evaluates test subjectsâ ability to determine what a person is feeling by reading their facial microexpressions.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

Demonstrate and describe acid-base reactions of baking soda and baking powder by making pancakes.

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

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

This science project involves comparing the relative effectiveness of salt, pepper and dehydration in food preservation.