Transpiration Lab Report Rubric Name: _________________________ DUE: April 11, 2015 Presentation Background Information Procedure Data Presentation Analysis Errors Conclusion Expectation Neat: if handwritten, MUST BE LEGIBLE WITHOUT STRAINING/DECIPHERING Organized logically Headings for sections Citations: MLA style Ties together the following: Transpiration’s role in the water cycle How a plant moves water Properties of water that make this happen Discussion of stomata and their relevance to water loss Summarize what you did – including scientific name of the plant we used. Correct identification of independent and dependent variables. Present predictions about what would happen. Raw Data and Calculated Data must be presented NEATLY in an organized, labeled data table Graph 1: your group’s daily water loss – neatly labeled, all on one graph, appropriately done (line or bar?!) Graph 2: your total percent loss vs class total percent loss per environment (include error bars!) Description of data: patterns/trends. How did your data compare to the class averages? How do the environments compare to one another? Use STDVs for comparison purposes! Discuss at least 2 sources of error and how they would alter the lab. Propose methods to better control them! Thoroughly address the conclusion questions in complete sentences, paragraph form. Point Value Your Points 10 25 15 20 40 10 30 Conclusion Questions: Which environmental variable(s) resulted in the greatest rate of water loss through transpiration? Explain why this factor might increase water loss when compared to other factors. Did the data support or reject your hypothesis? The original lab procedure asked you to come up with a way to calculate the leaf surface area and then use that to estimate the whole plant’s leaf surface area. Do you think this procedural element would have made the results any more accurate? Explain. Discuss 2 physiological or structural adaptations plants can use to minimize water loss. Make sure to address SPECIFICALLY how it reduces transpiration.