This project illustrates the combined effect of sounds and graphics by drawing boxes and ringing bells as the user clicks the mouse pointer on the screen. The color and the shade of the boxes and the pitch of the sounds are a function of the location of the click. It is a good example of a combination of expected and random effects.
Extensions: Experiment with changing rectangles by other shapes. Experiment with simultaneous sounds for each shape. Experiment with changing the sounds according to the colors. Learnscratch.org http://learnscratch.com/sc3-u6/sc3-l24
