This process started by me standing on top of a plastic crate. Since the plastic is an insulator the charges will not flow from me straight into the ground which is important for the experiment. Next, I turned on the Van De Graff (VG) and put my hand on the metal ball. The VG produces electrons that then move outwards towards the metal ball. Since my hand is in contact with the metal ball the electrons enter me aswell through the process of conduction. This is where the plastic crate being an insulator comes in. Since I am receiving electrons and they have no where to travel they stayed on me creating an excess amount electrons. Throughout this process I was holding paper scraps in my other hand. The excess electrons wanted to move away from me because negative charges repel. The only other place for the excess electrons was the paper. Finally, the paper also gained an excess amount of electrons resulting in them want to repel. So, when I opened my hand the paper flew out because they are all pushing against each other due to the excess electrons.