In this science fair project, students make their own rain gauge to measure rainfall.

This science fair project idea investigates how magnetism can defy the force of gravity.

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 fair project idea explores the different properties of matter.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Determine if gender affects the ability to identify different smells.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

This science fair project idea explores whether talking to a plant will help it grow.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

This project compares the strength of one, two, and three-ply toilet paper.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!

Make a backbone model to explore human anatomy and life science.