Which properties seemed to make the largest craters? Find some impactors, such as a marble, golf ball, ping-pong ball, or anything of a similar size that you can drop into the surface. Try to find a few impactors with different masses. 1.What is the reason for dropping impactors from the same height, or what varies when you drop them from different heights? 2.Did the differentiated surface (cocoa powder over flour) produce a radial pattern of debris?.