Making Waves... with Sound!

Today we had a former V-O Parent visit to give a presentation on sound.  He talked all about sound waves and we even dissected a speaker to see how it works!
We talked about electromagnets and how the strength of electricity through the electromagnet's wire forces two magnets to repel, and when doing so push air with a paper disk to create sound waves fast enough for our ears to hear.

So you can imagine how excited I was to come home and discover this video that shows sound waves from FIRE using something called a Rubens' Tube.
Check it out!