Students investigate sound waves in terms of frequency and amplitude, linking these attributes to pitch and loudness.
Students use the sound simulation developed by PHet (http://phet.colorado.edu/en/simulation/sound) which is a free resource.
I am making this a free resource as it is largely based upon a resource by the PHet MIddle School Team called "Sound_Inquiry for Middle School" (which can be found on the above page), however I have modified sections.
Please let me know what you think.
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