This project examines the concentration of dissolved oxygen in water, with and without oil.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Science fair project that demonstrates how stalagmites and stalactites are formed.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This conservation of energy demonstration shows why the first hill is the highest on a roller coaster. Learn more about potential and kinetic energy!

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Using a toy race car kids create a visual model of the Doppler Effect.

What kind of fabric holds dye best? How can you improve a dyed fabric's colorfastness? In this colorful project, test colorfastness using mordants and bleach.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Test out various brands of permanent markers to see which one is least water soluble.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

This science fair project idea explores whether color affects a person's emotional state.

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

This science fair project idea discovers the effect of (high) heat on animal cells.

Learn how to convert gravitational potential energy into mechanical energy in this fun science fair project idea.

In this science fair project, students create their own miniature salt flats at home.

Compare the amount of ozone in various locations with this science fair project that will have your kid create her own ozone strips!

Discover the interactions of synthetic dyes and natural dyes on natural and artificially-made fabrics.

This science fair project idea investigates how different disinfectants work in killing germs.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.