<?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_natdis/cub_natdis_lesson08.xml</identifier><docType>lesson</docType><format>text/xml</format><language/><title>Tornado!</title><creator>Integrated Teaching and Learning Program, </creator><keywords><keyword>Earth</keyword><keyword>tornadoes</keyword><keyword>windstorms</keyword><keyword>severe weather</keyword><keyword>thunderstorms</keyword><keyword>Tornado Alley</keyword><keyword>Fujita Tornado Damage Scale</keyword></keywords><vocabulary><word>Air Masses</word><word>Air Pressure</word><word>Climate</word><word>Convection</word><word>Front</word><word>The Fujita Tornado Damage Scale</word><word>Inversion</word><word>Jet Stream</word><word>Kilometer (km)</word><word>Rope Tornado</word><word>Subvortices</word><word>Supercells</word><word>Tornado</word><word>Tornado Alley</word><word>Vortex</word><word>Wedge Tornado</word></vocabulary><summary>Students learn about tornadoes - their basic characteristics, damage and  occurrence. Students are introduced to the ways that engineers consider  strong winds, specifically tornadoes, in their design of structures. Also,  students learn how tornadoes are rated, and learn some basics of tornado  safety.</summary><engrConnection>
		
			
				Understanding the science of natural phenomena enables engineers to design and build strong structures to withstand natural disasters such as tornadoes. By combining their expertise in inventing measurement and data gathering tools with their ability to analyze and learn from past failures, engineers continue to improve structural designs, advance warning systems and emergency procedures for human safety. This same process of gathering and analyzing data to better understand problems and formulate solutions is used in all engineering disciplines.
			
		
	</engrConnection><learningObjectives><learningObjective>Understand how engineers design and build structures to withstand tornado damage.  </learningObjective><learningObjective>Describe tornadoes, how they are measured and how they are formed.</learningObjective><learningObjective>Understand how the wind and tornadoes affects humans.</learningObjective><learningObjective>Describe some basics of tornado safety.   </learningObjective></learningObjectives><timeRequired unit="minutes">50</timeRequired><publisher>TeachEngineering.org</publisher><contributors><contributor>Jessica Todd</contributor><contributor>Melissa Straten</contributor><contributor>Malinda Schaefer Zarske</contributor><contributor>Janet Yowell</contributor></contributors><references><reference>Houghton Mifflin Company. The American Heritage® Dictionary of the English Language, Fourth Edition, New York: Houghton Mifflin Company, 2000.</reference><reference>http://www.noaa.gov/tornadoes.html</reference><reference>http://sln.fi.edu/tfi/units/energy/blustery.html</reference><reference>http://www.spc.noaa.gov/faq/tornado/#The%20Basics</reference></references><eduStandards><eduStandard><id>S11417A8</id><locale>International_Technology_Education_Association-ITEA_STL_Standards</locale><type>Technology</type><description>D. Structures need to be maintained.
</description><lowgrade>3</lowgrade><highgrade>5</highgrade></eduStandard><eduStandard><id>S11425A2</id><locale>Colorado</locale><type>Science</type><description>b. Develop and communicate an
evidence based scientific explanation
around one or more factors that
change Earth's surface</description><lowgrade>5</lowgrade><highgrade>5</highgrade></eduStandard><eduStandard><id>S114259D</id><locale>Colorado</locale><type>Science</type><description>a. Develop and communicate an
evidence-based scientific explanation
for changes in weather conditions
</description><lowgrade>5</lowgrade><highgrade>5</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">2011-03-30</created><gradeLevel lowerbound="3" upperbound="5">5</gradeLevel><audience>Teacher</audience></tem>

