Draw a series of circles in a line, starting with 1 circle and increasing to 10 circles.
Draw a grid of circles, starting with a 10-circle grid and expanding to a 100-circle grid.
Animate each circle in the grid like they rotating around a central point
Animate each circle to bounce off the walls
Add mouse interaction to make some balls appearing or disappearing
From the sketch 5 how can you do this sketch
From the sketch 5 how can you do this sketch