In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

This project makes young children uniquely aware of their sense of touch and its ability to alone give them information about the world around them.

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

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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

This science fair project idea determines which method of hand cleansing is the most effective.

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

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea explores how length affects the weight a bridge can hold.

In this experiment you will replicate the mummification process by making a hot dog mummy.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

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

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

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

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

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

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

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.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

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

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

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

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.