NDLI: Sound Visualization Stations

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Sound Visualization Stations

Content Provider	TeachEngineering: STEM curriculum for K-12
Author	Heveran, Chelsea
Copyright Year	2011
Description	Students learn about sound and sound energy as they gather evidence that sound travels in waves. Teams work through five activity stations that provide different perspectives on how sound can be seen and felt. Students learn about sound and sound energy as they gather evidence that sound travels in waves. Teams work through five activity stations that provide different perspectives on how sound can be seen and felt. At one station, students observe oobleck (a shear-thickening fluid made of cornstarch and water) “dance” on a speaker as it interacts with sound waves (see Figure 1). At another station, the water or grain inside a petri dish placed on a speaker moves and make patterns, giving students a visual understanding of the wave properties of sound. At another station, students use objects of various materials and shapes (such as Styrofoam, paper, cardboard, foil) to amplify or distort the sound output of a homemade speaker (made from another TeachEngineering activity). At another station, students complete practice problems, drawing waves of varying amplitude and frequency. And at another station, they experiment with string (and guitar wire and stringed instruments, if available) to investigate how string tightness influences the plucked sound generated, and relate this sound to high/low frequency. A worksheet guides them through the five stations. Some or all of the stations may be included, depending on class size, resources and available instructors/aides, and this activity is ideal for an engineering family event.
Language	English
Access Restriction	Open
Rights Holder	Regents of The University of Colorado
Subject Keyword	Physical Science Physics Science and Technology Wavelength Family Activity Hearing Aid Family Event Sound Acoustic Shear-thickening Fluid Frequency Amplitude Oobleck Acoustics Speaker Sound Energy
Content Type	Text
Time Required	PT45M
Education Level	Class IV Class V Class VI
Pedagogy	Experimental Activity
Resource Type	Hands-on
Subject	Physics Technical

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