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

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

The objective of this science project is to determine the length of time for different seeds to germinate.

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

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

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

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

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

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

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

This science experiment has students test whether a snail moves faster on concrete or dirt.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

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

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

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

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

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.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

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.

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

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

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

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

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

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

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