In this citizen science investigation, I completed an experiment to see how the type of sketching pencil graphite affects how well you can erase the pencil marks with a white prismacolor plastic eraser. I completed my experiment by comparing how well a 6H, 4H, 2H, HB, B, 2B, 3B, 4B, 5B, 6B, 8B, and 10B WORISON artist grade sketching pencil erase.
The results of my experiment were somewhat unexpected. I predicted that the 2B sketching pencil would erase the best, because the 2B pencil was not a very dark graphite, and it was relatively soft. This hypothesis was incorrect; the HB sketching pencil erased significantly better than the 2B sketching pencil.