1Describe the neon tube demonstration. Why does the tube light up whenheld close to the dome? ________________________________________________________________________________________________________________________________________________ 2Why does the neon tube light up brightly at first and less brightly later? ________________________________________________________________________________________________________________________________________________ 3In the neon tube demonstration, what path is taken by the charges oncethey leave the dome? ________________________________________________________________________________________________________________________________________________ 4For someone playing with the Van de Graaff, describe the differencebetween standing on a foam block and standing on the floor. ____________________________________________________________________