Today, students did some investigations to build their understanding of sound and waves. Students should understand that that sound is a form of energy that travels in waves called compressional (longitudinal) waves, and that sound waves can travel through different mediums, including solids, liquids, and gases. After the students did the  Slinky activities, we investigated pitch and volume using  Audacity  recording and sound mixing software.

Screen shot 2014-05-12 at 4.35.14 PM