Smooth the sand and sprinkle a thin layer of colored sand on top. Drop the ball bearing into the box and observe the shape of the crater and the pattern of ejecta (material excavated by the impact and tossed out of the crater.) Drop an object that isn't round and observe the shape of the crater and the pattern of ejecta. Throw the ball bearing in at an angle and observe the shape of the crater and the pattern of ejecta. Does the shape of the crater depend more on the shape of the impactor, or the angle it hits the ground at? What about the pattern of ejecta? How do you know? You may use a sketch to help explain