<?xml version="1.0" encoding="UTF-8"?>
<tem xmlns="http://www.teachengineering.org/tem/elements/1.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.teachengineering.org/tem/elements/1.0/ http://www.teachengineering.org/schemas/tem.xsd"><identifier>http://www.teachengineering.org/view_lesson.php?url=collection/cub_/lessons/cub_rock/cub_rock_lesson01.xml</identifier><docType>lesson</docType><format>text/xml</format><language/><title>Rock Solid</title><creator>Integrated Teaching and Learning Program, </creator><keywords><keyword>boundaries</keyword><keyword>crust</keyword><keyword>compression</keyword><keyword>disaster</keyword><keyword>earth</keyword><keyword>geotechnical</keyword><keyword>natural disaster</keyword><keyword>rock</keyword><keyword>strength</keyword><keyword>shear</keyword><keyword>structure</keyword><keyword>stress</keyword><keyword>tectonic plate</keyword><keyword>tension</keyword><keyword>weathering</keyword></keywords><vocabulary><word>Compressional stress</word><word>Earth’s crust</word><word>Erosion</word><word>Geotechnical engineer</word><word>Homogeneous</word><word>Igneous rock</word><word>Metamorphic rock</word><word>Mineral</word><word>Plane of weakness</word><word>Rock</word><word>Rock cycle</word><word>Rock falls</word><word>Sedimentary rock</word><word>Shear stress</word><word>Stress</word><word>Tensional stress</word><word>Weathering</word></vocabulary><summary>Rocks cover the earth’s surface, including what is below or near human-made structures. With rocks everywhere, breaking rocks can be hazardous and potentially disastrous to people. Students are introduced to three types of material stress related to rocks: compressional, torsional and shear. They learn about rock types (sedimentary, igneous and metamorphic), and about the occurrence of stresses and weathering in nature, including physical, chemical and biological weathering. </summary><engrConnection>Geotechnical engineers study rocks in the earth’s crust. They conduct tests and simulations to predict volcanoes, earthquakes and rockslides. To avoid potential disasters that might occur if rocks fail, engineers routinely apply their understanding of rocks and soils prior to the construction of complex and costly structures such as airports, roads, dams, skyscrapers and tunnels. They identify underground rock types and predict their behavior under stress, as well as determine the best way to excavate them as part of the construction process.</engrConnection><learningObjectives><learningObjective>Describe the basic ideas of stress. </learningObjective><learningObjective>List the three different types of weathering. </learningObjective><learningObjective>Explain that not all rocks break the same way or with the same amount of pressure.</learningObjective><learningObjective>Describe how engineers are able to evaluate the strength of rocks.  </learningObjective></learningObjectives><timeRequired unit="minutes">50</timeRequired><publisher>TeachEngineering.org</publisher><contributors><contributor>Megan Podlogar</contributor><contributor>Jacquelyn Sullivan</contributor><contributor>Malinda Schaefer Zarske</contributor><contributor>Denise Carlson</contributor></contributors><requirements><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_rock/cub_rock_lesson01_worksheet.pdf</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_rock/cub_rock_lesson01_worksheetanswers.pdf</requires><requires>http://www.teachengineering.org/collection/cub_/lessons/cub_rock/cub_rock_lesson01_presentation.ppt</requires></requirements><references><reference>http://www.dictionary.com</reference><reference>http://wapi.isu.edu/envgeo/EG2_earth/EG_mod_2_prt1.htm</reference><reference>http://www.ngdc.noaa.gov/seg/cdroms/geohazards_v3/document/647006.htm</reference><reference>http://scign.jpl.nasa.gov/learn/plate5.htm</reference><reference>http://volcano.und.nodak.edu/vwdocs/vwlessons/lessons/Minerals/Minerals2.html</reference><reference>http://www.moorlandschool.co.uk/earth/rockcycle.htm</reference><reference>http://geology.wr.usgs.gov/docs/usgsnps/rxmin/rock.html</reference></references><eduStandards><eduStandard><id>S114170C</id><locale>International_Technology_Education_Association-ITEA_STL_Standards</locale><type>Technology</type><description>D. The use of technology affects humans in various ways, including their safety, comfort,
choices, and attitudes about technology's development and use.
</description><lowgrade>6</lowgrade><highgrade>8</highgrade></eduStandard><eduStandard><id>S11424D2</id><locale>Colorado</locale><type>Science</type><description>a. Predict and evaluate the movement of
an object by examining the forces
applied to it
</description><lowgrade>8</lowgrade><highgrade>8</highgrade></eduStandard><eduStandard><id>S11425AE</id><locale>Colorado</locale><type>Science</type><description>a. Gather, analyze, and communicate an
evidence-based explanation for the
complex interaction between Earth's
constructive and destructive forces
</description><lowgrade>6</lowgrade><highgrade>6</highgrade></eduStandard></eduStandards><geoCoverage>United States</geoCoverage><rights>Copyright 2012 - Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder</rights><rights>http://www.teachengineering.org/policy_ipp.php</rights><isPartOf>http://www.teachengineering.org/</isPartOf><created type="W3CDTF">2010-08-10</created><gradeLevel lowerbound="7" upperbound="9">8</gradeLevel><audience>Teacher</audience></tem>

