Summary
Mark builds a giant horn and uses powerful sound to shatter glass, exploring how sound is a vibration that carries energy. He shows how matching a glass's natural pitch makes it break.
Viewer safety
Very loud sound and shattering glass; the audio is intense. Made for a general YouTube audience — an occasional mild or bleeped word can slip in, so preview if your classroom bar is strict.
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Teaching resources
Discussion questions
Talk about it
Sound is made of vibrations traveling through the air. A loud enough sound at just the right pitch shakes a glass hard enough to break it.
- What is sound actually made of?
- Why does the pitch have to match the glass to break it?
- How do you know sound carries energy from this demonstration?
Quick work-a-long
Vocabulary: vibration, sound wave, pitch, energy.
Try it: Hum at different pitches with your hand on your throat. Feel the vibration change. Which pitch buzzes strongest?