Sketch 03 : Bounce

1. 3.0 Move a shape from left to right across the screen.
2. 3.1 Move a shape from left to right across the screen. When it moves off the right edge return it to the left;
3. 3.2 Move a shape from left to right across the screen. When it hits the wall make it bounce back from right to left (forever)
4. Save it as yourLastName_bounce