Let's make a drawing program! 1. When the up/down keys are pressed, make the pencil move forward/backward. 2. When the left/right keys are pressed, make the pencil turn 10 degrees in that direction. 3. When the number 1 is pressed, make it put the pen down. When the number 2 is pressed, make it pick the pen up. 4. When the pencil is clicked, make it change the pen color. 5. When the number 3 is pressed, make it increase the pen size. When the number 4 is pressed, make it decrease the pen size. 6. When the green flag is clicked, "reset" the drawing (erase the drawings, put the pencil back in the middle pointing toward the right, and reset the pen size and color). Challenge Questions: 1. When the 'a' key is pressed, make the pencil draw a square. 2. When the 'b' key is pressed, make the pencil draw a triangle. 3. When the 'c' key is pressed, make the pencil draw a circle.