In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Start your toy engines -- this is going to be a fast and friction-filled race!

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

This science fair project teaches students about wilting and browning of salad greens.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

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

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

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

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

Test whether plants can grow without sunlight and water.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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

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

Here's a science activity to help your child investigate how seeds are designed to travel.

This science fair project idea demonstrates that plants give off water.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.