This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

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

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

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

This snowman's not abominable, he's adorable! Your child can bring her very own snowman to life while practicing how to create texture.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

This classic children's game demonstrates how sound travels through air vs. through a solid.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

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

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

In this project children practice the scientific method while playing with puffy paint.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

This science fair project idea investigates how the shape of an object affects drag.

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

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

People have favorite flavors, but what about ants? Which ant food is the most popular?

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

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

This project determines what category of person is most likely to be ticklish.

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

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

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

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!