Question 17
Two nearly alike leafy twigs were cut at the same time from the same branch of the tree. In the laboratory, two test tubes were filled with equal level of water and a small quantity of cedar wood oil was then poured over the water so that none of it may be lost by evaporation.
All the leaves were stripped from one of the branches and the branches are then put into the test tubes as seen in the figure at the right.
Which of the two set-ups have water diminishes at a much greater rate? Explain your answer.
All the leaves were stripped from one of the branches and the branches are then put into the test tubes as seen in the figure at the right.
Which of the two set-ups have water diminishes at a much greater rate? Explain your answer.