How does an eraser work, what will you do when you make a mistake while writing with a pencil, Take an eraser and rub it out? An eraser is used for removing pencil marks from a paper.
It is generally made up of natural or synthetic rubber, vinyl plastic or a gum-like material. Now, as you might know, a pencil’s lead is made up of graphite, water, and clay. Graphite particles stick better on an eraser than on paper.
So, when we rub with an eraser, the graphite particles stick to the eraser and are removed from the paper. We can then make the necessary corrections.