How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

This science fair project idea produces varying pitches of sound.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

This science fair project idea produces sounds by creating vibrations using different objects.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

In this project students experiment with making music using only glasses of water.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

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

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

This science fair project idea explores which fruit molds the fastest.

By using static electricity generated from their body, a child can cause a small fluorescent lamp bulb to light up!

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

This science fair project idea investigates the difference in reaction times between boys and girls.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

For a fun family activity to introduce your child to genetics, have your child go on a search for dominant and recessive family genes!

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.