Transpiration (page 2)
For Further Investigation
Do plants lose more water during the daytime or nighttime? A project question might be, How does light affect the volume of water lost by transpiration?
Clues for Your Investigation
- Repeat the experiment, preparing 2 twocup setups with stems. Set the cups at an equal distance from the light. (Putting the cups at an equal distance from the light helps control the temperature so that it is not a factor.) Use boxes to cover one of the two-cup-with-stem setups.
- Compare the amount of liquid collected on the inside of each cup over the same period of time.
- For the most accurate results, do four or more tests with and without light.
References and Project Books
Bonnet, Robert L., and G. Daniel Keen. Botany: 49 Science Fair Projects. Blue Ridge Summit, Pa.: Tab Books, 1989.
____.Botany: 49 More Science Fair Projects. Blue Ridge Summit, Pa.: Tab Books, 1991.
Chisholm, Jane. Introduction to Biology. London: Usborne, 1984.
Franklin, Sharon. The Inside Story. Glenview, Ill.: Good Year Books, 1995.
Suzuki, David. Looking at Plants. New York: Wiley, 1991.
VanCleave, Janice.janice VanCleave's Biology for Every Kid. New York: Wiley, 1990.
____.janice VanCleave's Plants. New York: Wiley, 1996.
Wood, Robert W. Science/or Kids: 39 Easy Plant Biology
Experiments. Blue Ridge Summit, Pa.: Tab Books, 1991.
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state’s handbook of Science Safety.