http://www.merlot.org:80/merlot/ A search of MERLOT materials Copyright 1997-2013 MERLOT. All rights reserved. Mon, 20 May 2013 13:52:23 PDT Mon, 20 May 2013 13:52:23 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=294382 The periodic table is organized so elements are arranged in columns based on the number of valence (outer) electrons available for chemical reactions. Therefore, the elements in the columns have similar behavior. http://www.merlot.org/merlot/viewMaterial.htm?id=294389 Create three grasshoppers from different sized paper squares. Make a hypothesis as to which grasshopper will "hop" the best. Practice hopping the grasshoppers and then hop each one 5 times. Record the data and figure out which hopped the best. Discuss how you measured "best" i.e., which variables were you measuring to evaluate the hops? List as many variables (things that were different or that changed) as you can... http://www.merlot.org/merlot/viewMaterial.htm?id=294393 Students design their own experiment to answer the burning question "Which food is stickier״? http://www.merlot.org/merlot/viewMaterial.htm?id=294398 Students mix two powders and one liquid in a bag and record observations. Student groups collect information on ten different sets of reactants and share data with whole class. Groups then develop testable questions, design set of experimeints to answer their question, and then determine the answer to the question.