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Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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 science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

This science fair project idea produces varying pitches of sound.

This experiment investigates whether there are certain sounds that affect men and women differently

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

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

This science fair project idea demonstrates sonar mapping of the ocean floor.

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

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.

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

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?

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

.Have you ever had problems with your wifi signal strength? In this experiment you will learn about how wireless signals pass through the air and solid objects.

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

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

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

Find out whether matching resonant frequencies can cause objects to shatter.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

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

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.