~ glow stick xylophone ~put the glow sticks in cups of water and an aura comes off in the dark, when you tap them ~ probably the coolest thing ever ~ this would be a fun activity for our first grade SOUND unit ~
Use this website to quiet down your class! The balls bounce when there is quite a bit of noise in the room. The challenge is to get the balls to settle down or stop moving completely. Think it will work in my high school room?