Erica, James, Stella, and Kim all did an experiment involving an electrically charged object. Who did repeated trials of his or her experiment? (2 points)
Group of answer choices
Erica
Description Observation
Negatively Charged Balloon + Uncharged Paper The balloon attracts the paper.
Kim
Description Observation
Negatively Charged Balloon + Positively Charged Paper The balloon attracts the paper.
James
Description Observation
Positively Charged PVC Tube + Uncharged Paper The PVC tube attracts the paper.
Stella
Description Observation
Negatively Charged Balloon + Positively Charged PVC Tube The balloon attracts the PVC tube. The balloon attracts the PVC tube. The balloon attracts the PVC tube.
