This product uncovers prior knowledge students have on the unit: Light and Sound Waves where students explain how 10 different statement are either true or false. This product is part of my Light and Sound Waves Unit Bundle!This product comes with a 23 Presentation slide to help lead the discussion (PDF), a worksheet to go along with the presentation or stand alone, an answer key, and a unit cover page with a list of vocabulary words from the unit along with the learning goals.Unit bundle includ