Open the flattened end – just a little bit.Cut the flattened end to make a “V” shape (like a point to a pencil).Place one end of the drinking straw in your mouth and bite down on it to flatten it.Please be careful to not cut yourself and don’t share used straws/kazoos with friends. You can model the up and down pattern of the sound that the volcano makes in the audible range by playing a kazoo made from a straw. Can you identify where the sound changes? Listen to the Villarrica volcano’s sound. This difference in the sound can tell us how soon the volcano might erupt or even whether a volcano is more active. The higher up in the volcano’s chamber the magma is, the higher-pitched the sound is, and the lower the magma in the chamber, the lower the sound. Instead, scientists are interested in the sound that comes from deep underground as the magma changes position before an eruption. But scientists don’t listen to the sounds you hear as a volcano is erupting. Infrasound is one type of data that can indicate that the volcano is becoming more active. It can be a useful tool to help gather information about when or if a volcano might erupt. Sound is important to the work of many volcanologists-scientists who study volcanoes, lava, magma, and related geological phenomena. Note: As you move through this activity, there are different clips from Johnson’s interview with Science Friday. Let’s check in with Johnson for more information about the sounds of volcanos. Science Friday sat down with Jeffrey Johnson, an associate professor of geophysics at Boise State University to talk about what we can learn by listening to volcanos. See Also: Make Me Wanna Shout and Beginners To Advanced Sonokinesis Guide.Quite a bit actually. Propagation of sound waves can be disrupted by wind making Air Manipulation a perfect counter.Users of Sound Immunity or Sound Absorption are either immune or highly resistant.Sound Nullification and Silence Manipulation can nullify the user's powers.Sound requires a medium to travel through, such as air, ground or water, though it can be virtually anything.depend upon of the knowledge, skill, and strength of the user. May be unable to create sound, being limited to manipulating only from already existing sources.Vacuum Creation - Loud enough sound waves can temporarily create vacuums.

Heat Manipulation - intense sound can generate heat.Air Dashing by releasing sound waves as propulsion force.Protected Senses of hearing and equilibrium from the effects of sound.

Lie Detection by listening to someone's heartbeat.

Enhanced/ Supernatural/ Absolute Hearing.

Manipulate the properties of sound waves.

Earthquake Generation by releasing sound waves into the ground.

Black Hole Creation by producing a sound over 1000 dB.

A common use of this ability is Sonic Scream. In essence, sound is an invisible, deadly weapon and a versatile tool. The vibrations can also affect at a molecular level. Since sound vibrations can travel through the air, ground, water and any form of medium, defense by using physical barriers is difficult. At low frequencies, sound can be potentially fatal to living beings by causing internal damage, while high frequencies cannot be heard by normal humans but can be used for sonar-like effects. User can mimic, intensify, hush, and distort, as well warp, strengthen, echo, speed up, and slow down sound, using it as a powerful physical force and high-speed movement. From the point of view of physics, sound is considered to be the waves of vibratory motion themselves, whether or not they are heard by the human ear. The effect these waves upon the ear is perceived as sound. Users can create, shape and manipulate sound, a periodic disturbance of a medium (air, ground, water, etc) that radiates outward linearly in the form of a pressure wave.

Soundwaves gif