Question 26
Eight similar leaves from the same kind of plant are labelled A–H. Apply petroleum jelly as follows: A/B none; C/D upper surface only; E/F lower surface only; G/H both surfaces. Hang the leaves in their original order and compare their measured mass losses after at least one day. While the leaves are hanging up, make a prediction about which ones you think will lose mass most quickly. Write it down and explain your prediction.
