The starting point for the 'flipped' PROJECT activities is an on-line science QUIZ:
IT IS IMPORTANT THAT STUDENTS & TEACHERS FIRST COMPLETE THE SOUND QUIZ BEFORE VIEWING THE STUDENT WIKI (THIS PAGE), THE FLIP CONTENT OR THE TEACHER WIKI CONTENT.
The content of both the DISCOVER and PROJECTS sections are for students who have already completed the QUIZ and the feedback supplied for each question.
A very simple classroom activity to help in understanding how sound works:
Video 1. How to see sound
Much more complicated activity - good teacher science project to amaze your students:
Video 2. Making waves with sound & speakers