Isn't It Ionic?

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=2 height=140 BGCOLOR="#9966CC" TEXT="#080000" bgproperties="fixed" background="16c00a20ezthtv.gif"> <div> <A HREF="index.htm" TARGET="_top" TITLE="Isabels Page"><U><B>home</B></U></A><B>     |     </B><FONT SIZE="5" COLOR="#330066" FACE="Arial" ><B>Isabel's Page</B></FONT></div> <div> <A HREF="id94.htm" TARGET="_top" TITLE="Element Trading Cards"><U>Element Trading Cards</U></A>   |   <A HREF="id95.htm" TARGET="_top" TITLE="Drawing Elements"><U>Drawing Elements</U></A>   |   <A HREF="id96.htm" TARGET="_top" TITLE="Atomic Bonding"><U>Atomic Bonding</U></A>   |   <A HREF="id97.htm" TARGET="_top" TITLE="Making Molecular Models"><U>Making Molecular Models</U></A>   |   <A HREF="id98.htm" TARGET="_top" TITLE="Mixtures"><U>Mixtures</U></A>   |   <A HREF="id109.htm" TARGET="_top" TITLE="Tasty Mixtures"><U>Tasty Mixtures</U></A>   |   <B>Isn't It Ionic?</B>   |   <A HREF="id100.htm" TARGET="_top" TITLE="Unit Assessments"><U>Unit Assessments</U></A></div> <div> <B>Isn't It Ionic?</B></div> <DIV ALIGN="LEFT"></DIV> <div> </div> </td> </tr><tr> <td valign="top" width=210 BGCOLOR="#CCFF66" TEXT="#080000"> <div> <B><IMG SRC="10692860.gif" border=0 width="146" height="134" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <A HREF="id53.htm" TARGET="_top" TITLE="Teaching Portfolio"><U><B><IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Back to E-Portfolio</B></U></A></div> <bR> <div> <A HREF="id88.htm" TARGET="_top" TITLE="Interdisciplinary Unit"><U><B><IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Back to Interdisciplinary Unit</B></U></A></div> <bR> <div> <A HREF="id21.htm" TARGET="_top" TITLE=" Lessons Activities"><U><B><IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Back to Lessons & Activities</B></U></A></div> <bR> <div> <A HREF="id76.htm" TARGET="_top" TITLE="Video Clip of Teaching"><U><B><IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Video Clip of Teaching</B></U></A></div> <bR> <div> <A HREF="id19.htm" TARGET="_top" TITLE="Links"><U><B><IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Links</B></U></A></div> <bR> <div> <A HREF="id26.htm" TARGET="_top" TITLE="Reading Corner"><U><B><IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Reading Corner</B></U></A></div> <bR> <div> <A HREF="id34.htm" TARGET="_top" TITLE="School Photos"><U><B><IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">School Photos</B></U></A></div> </td> <td valign="top" height=340 BGCOLOR="#CCFF66" TEXT="#080000"> <div> <B>Back</B><A HREF="id109.htm" TARGET="_top" TITLE="Tasty Mixtures"><U><B><IMG SRC="22528280.gif" border=0 width="40" height="40" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></U></A><A HREF="id100.htm" TARGET="_top" TITLE="Unit Assessments"><U><B><IMG SRC="22628280.gif" border=0 width="40" height="40" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></U></A><B>Next</B></div> <div> <B> </B><B> </B></div> <div> <FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B>Reflection:</B></FONT>This is a lesson that utilizes a <B>teacher-centered student assessment. The assessment is a </B><A HREF="id105.htm" TARGET="_top" TITLE="Writing Rubric"><U><B>Writing Rubric </B></U></A>(click to view rubric). This lesson was also designed to <B>incorporate language arts, health and geography into the science curriculum.</B> The article related to this activity assumes a basic knowledge of chemical elements and atomic properties, such as how atoms bonding. Therefore, it is a good cumulative activity to this  unit. It affords students the opportunity to critically think through a problem or question by researching the base of knowledge available while at the same time promoting students to apply their own knowledge of atomic structures in a more performance based activity. </div> <bR> <div> <B>Title:</B> Isn't It Ionic</div> <div> <B>Class:</B> Contemporary Science, 9th Grade Applied</div> <div> <B>Duration:</B>160-180 minutes</div> <div> <B>Objectives:</B>Students will be able to:</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Research and identify the properties of organic chemical solvents</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Research and identify the health risks of organic chemical solvents</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Assess future uses of ionic liquid solvents to replace organic solvents</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Create a "Safety with Solvents" newsletter.</div> <div> <B>Assessment:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Formal: <A HREF="id105.htm" TARGET="_top" TITLE="Writing Rubric"><U>Writing Rubric</U></A>; Reading and answering the guided questions that accompany the article "<A HREF="http://www.nytimes.com/learning/general/featured_articles/010424tuesday.html" TARGET="_top" TITLE="http://www.nytimes.com/learning/general/"><U>With a Splash of Salt, Industry May Reap Environmental Advantages</U></A>"</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Informal: Teacher Observation; Question & Answers</div> <div> <B>PA Standards:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">3.1 Unifying Themes</div> <div> 3.1.10C Examine and describe recurring patterns that form the basis of chemical periodicity.</div> <div> 3.1.10E Describe how fundamental science and technology concepts are used to solve practical problems.</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">3.2 Inquiry Design</div> <div> 3.2.10A Apply knowledge and understanding about the nature of scientific and technological knowledge.</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">3.4 Physical Science, Chemistry and Physics</div> <div> 3.4.10A Explain concepts about the structure and properties of matter.</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">3.8 Science Technology and Human Endeavors</div> <div> 3.8.10A Analyze the relationship between societal demands and scientific and technological   </div> <div>                enterprises.</div> <div> 3.8.10B Analyze how human ingenuity and technological resources satisfy specific human needs and  </div> <div>               improve the quality of life.</div> <div> 3.8.10C Evaluate possibilities consequences and impacts of scientific and technological solutions.</div> <div> <B>Material:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Pens/Pencil/Paper</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Copies of the article: <A HREF="http://www.nytimes.com/learning/general/featured_articles/010424tuesday.html" TARGET="_top" TITLE="http://www.nytimes.com/learning/general/"><U>"</U></A><A HREF="http://www.nytimes.com/learning/general/featured_articles/010424tuesday.html" TARGET="_top" TITLE="http://www.nytimes.com/learning/general/"><U>With a Splash of Salt, Industry May Reap Environmental Advantages</U></A><A HREF="http://www.nytimes.com/learning/general/featured_articles/010424tuesday.html" TARGET="_top" TITLE="http://www.nytimes.com/learning/general/"><U>" </U></A>one per student.</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Reference material with information about organic solvents, for example, internet sites, encyclopedias, textbooks, library references.</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Web Elements: <A HREF="http://www.webelements.com/" TARGET="_top" TITLE="http://www.webelements.com/"><U>http://www.webelements.com/</U></A></div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Chem-4-Kids: <A HREF="http://chem4kids.com" TARGET="_top" TITLE="http://chem4kids.com"><U>http://chem4kids.com</U></A></div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Solvents: <A HREF="http://www.osha-slc.gov/SLTCsolvents/" TARGET="_top" TITLE="http://www.osha-slc.gov/SLTCsolvents/"><U>http://www.osha-slc.gov/SLTCsolvents/</U></A></div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Drug Info Files: <A HREF="http://www.druginfofile.com/solvents.html" TARGET="_top" TITLE="http://www.druginfofile.com/solvents.htm"><U>http://www.druginfofile.com/solvents.html</U></A></div> <div> <A HREF="id105.htm" TARGET="_top" TITLE="Writing Rubric"><U><IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Writing Rubric</U></A></div> <div> <B>Warm-Up:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">On a piece of paper have students respond to the following questions(written on the board prior to class) </div> <div> on a piece of paper:</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What is a solvent?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What are some common household products that contain solvents?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">In what way can these products be dangerous?</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Discuss students responses in class</div> <div> <B>Procedure:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Begin with the warm-up</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">As a class, students read and discuss the article "<A HREF="http://www.nytimes.com/learning/general/featured_articles/010424tuesday.html" TARGET="_top" TITLE="http://www.nytimes.com/learning/general/"><U>With a Splash of Salt, Industry May Reap Environmental </U></A></div> <div>       <A HREF="http://www.nytimes.com/learning/general/featured_articles/010424tuesday.html" TARGET="_top" TITLE="http://www.nytimes.com/learning/general/"><U>Advantages"</U></A>  focusing upon and answering the following guided questions:</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What, according to the article is an ionic liquid?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">When Where ionic liquids first invented?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Why are large companies like Exxon and Mobil suddenly interested in learning more about ionic liquids?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What is it that makes organic solvents dangerous?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What are some common products that contain organic solvents?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">According to the article, in what way are ionic liquids similar in chemical structure to table salt?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">According to the article, what will most likely be the first industry application for ionic liquids?</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Divide the class into pair share groups. Each pair share group should research a chemical category of </div> <div>       solvents.</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Aromatic Hydrocarbons</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Chlorinated Hydrocarbons</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Alcohols</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Glycols</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Esters</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Ketones</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Formaldehyde</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">In their pair share groups students research the following information about the category of solvents:</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What are some products that contain this type of solvent?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">How is this type of solvent described chemically?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Note the chemical structure and identify each element on the periodic table.</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What are the effects of over exposure to this type of solvent?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What precautions can people take to protect themselves from this type of solvent?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What are some healthier alternatives to products that contain this type of solvent?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Are their environmental dangers associated with the use or production of substances containing </div> <div>        this type of solvent? If so, what are they?</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Using their research each pair share group should write an article about their category of solvent for a newsletter titled "Safety With Solvents".</div> <div> <B>Closure:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Once students have completed their initial research invite students to share their findings with the rest of </div> <div>        the class</div> <div> <B>Key Questions:</B></div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What, according to the article is an ionic liquid?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">When Where ionic liquids first invented?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Why are large companies like Exxon and Mobil suddenly interested in learning more about ionic liquids?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What is it that makes organic solvents dangerous?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What are some common products that contain organic solvents?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">According to the article, in what way are ionic liquids similar in chemical structure to table salt?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">According to the article, what will most likely be the first industry application for ionic liquids?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What are some products that contain this type of solvent?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">How is this type of solvent described chemically?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Note the chemical structure and identify each element on the periodic table.</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What are the effects of over exposure to this type of solvent?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What precautions can people take to protect themselves from this type of solvent?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What are some healthier alternatives to products that contain this type of solvent?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Are their environmental dangers associated with the use or production of substances containing this     </div> <div>       type of solvent? If so, what are they?</div> <div> <B>Extension Activity:</B></div> <div> <B><IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Each individual students should select one of the following topics to explore:</B></div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Civics- Research the role that the Environmental Protection Agency and other environmental organizations play in approving organic solvents for home use. What is the process for determining whether or not products should be approved? Who makes these types of decisions, and one what bases are they made?</div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Math- Survey each students home for products containing organic solvents. Record how many of each type of solvents are found. Create a master graph of the results. From this chart identify the most common household product containing solvents. Were more of the products found intended for kitchen, yard or another type of use? </div> <div> <IMG BORDER="0" SRC="Symb075c002d00f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Global History- Research the history of the Periodic Table of Elements, and make a timeline of changes since Russian chemist Dmitri Mendeleev first started organizing it in 1869. On your timeline, include answers to questions such as: What was the first element discovered? When was it discovered? What were some other major changes that have been made to this famous chart over time?</div> <div> <B>References:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Glasthal, J (2001). Daily Lesson Plans. <I>Teacher Connection; The New York Time Learning Center</I> [On-line]. Available: <A HREF="http://www.nytimes.com/learning/teachers/lessons/" TARGET="_top" TITLE="http://www.nytimes.com/learning/teachers"><U>http://www.nytimes.com/learning/teachers/lessons/</U></A></div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Masterton, W. & Hurley, C. (1997). <I>Chemistry Principles and Reactions</I>(<I> </I>3<FONT SIZE="1" COLOR="#000000" FACE="Arial" >rd</FONT> ed)<I>.</I> Orlando, Fl: Suanders College Publishing.</div> <bR> </td> </tr></table></body>