This is what they said. With whom do you agree most? Radio button Checked 1 of 5 Gwyneth: I think it has to do with the number of particles. Radio button Not checked 2 of 5 George: I think it has to do with the shape of the particles. Radio button Not checked 3 of 5 Hoda: I think it has to do with the size of the particles. Radio button Not checked 4 of 5 Natalie: I think it has to do with the movement of the particles. Radio button Not checked 5 of 5 William: I think it has to do with how hard or soft the particles are.