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.

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.

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.

Science fair project that examines condensation and the conditions needed in order for dew to form.

This science fair project idea shows kids how to grow mold and whether mold grows better in dry or moist conditions.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

This project examines what types of objects burn and which burn faster and cleaner.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

Slime mold is no longer classified as fungi! So what is it? In this cool science fair project, learn how to grow slime mold and explore its behavior.

Examine how a battery can be made from everyday materials.

Explore this fun middle school science fair idea to learn about photosynthesis and the key role of light in the growth of green plants.