http://www.merlot.org:80/merlot/ A search of MERLOT materials Copyright 1997-2013 MERLOT. All rights reserved. Sat, 18 May 2013 03:42:19 PDT Sat, 18 May 2013 03:42:19 PDT http://www.merlot.org:80/merlot/images/merlot.gif http://www.merlot.org:80/merlot/ 44 34 http://www.merlot.org/merlot/viewMaterial.htm?id=598538 This is the beginning of an inquiry lab to find the salt content of onion cells. Throughout the lab, students will have a pre-investigation with water and a salt solution to demonstrate plasmolysis in plant cells. Once they've had this initial data, they will come up with their own hypothese of what they think the salt concentration of an onion cell is, and will then develop an experiment to test their hypothesis. By the end of the experiment, students will have discovered if their hypotheses were correct or not, and will have determined the salt concentration of a plant cell. http://www.merlot.org/merlot/viewMaterial.htm?id=606754 This is a stand alone presentation for students to summarize the overall process by which photosynthesis converts solar energy into chemical energy and interpret the chemical equation for the process, and explain why photosynthesis is necessary for all living organisms on Earth. This could be used during the explanation of photosynthesis or it could be used as a review for students who struggled with the concepts.