Make some sounds and see what happens....
(These notes used to start with "This ONLY works if you download it and play it from your desktop." - Not true any more! works fine online in Scratch 2.0 and onwards.) The colored circles move along the x- or y-axis in response to the loudness of the room. Because it relies on your computer's microphone, it won't work in your browser... unless you give it permission. Updated after Scratch 2.0 came out - you can now run this project online. Hooray.
