Using Heat from the Sun

http://www.teachengineering.org/view_lesson.php?url=collection/duk_/lessons/duk_solaroven_tech_less/duk_solaroven_tech_less.xmllessontext/xmlUsing Heat from the SunTechtronics Program, energysolar energysolar ovenheat transferConductionConvectionRadiationThermal ConductivityInsulator/InsulationWatt (W)EmissivityInsolation/Solar RadiationRenewable ResourceNonrenewable Resource

In this lesson, students will first discuss where energy comes from, including sources such as fossil fuels, nuclear, and such renewable technologies as solar. After this initial exploration, students will investigate the three main types of heat transfer: convection, conduction, and radiation. Students will learn how properties describe the ways different materials behave, for instance whether they are insulators or conductors. Students will complete a crossword puzzle to reinforce their vocabulary in this content area. The class will then focus on the acquisition and storage of energy through the design, construction, and testing of a fully functional solar oven.

The design, construction, and testing of a solar oven is an engineering project combining materials science in the selection of materials with mechanical engineering in the use of heat transfer. Explain the three types of heat transfer: conduction, convection and radiation. Identify materials that are good insulators or conductors of heat. 50TeachEngineering.orgRoni Prucz (Primary Content Creator), Pratt School of Engineering, Duke UniversityRahmin Sarabi (Primary Content Creator), Pratt School of Engineering, Duke UniversityLauren Powell (Primary Content Creator), Pratt School of Engineering, Duke Universityhttp://www.teachengineering.org/collection/duk_/lessons/duk_solaroven_tech_less/schedule.pdfhttp://www.teachengineering.org/collection/duk_/lessons/duk_solaroven_tech_less/crossword1.pdfhttp://www.teachengineering.org/collection/duk_/lessons/duk_solaroven_tech_less/crossword2.pdfhttp://www.solarcooking.orghttp://www.backwoodshome.com/articles/radabaugh30.htmlS1028413North_CarolinaScience1.01 Identify and create questions and hypotheses that can be answered through scientific investigations.66S1028415North_CarolinaScience1.02 Develop appropriate experimental procedures for: • Student generated questions.66S1028419North_CarolinaScience1.04 Analyze variables in scientific investigations. • Identify dependent and independent.66S1028437North_CarolinaScience2.03 Evaluate technological designs for: • Application of scientific principles.66S102846CNorth_CarolinaScience5.01 Analyze the components and cycles of the solar system including: • Sun.66S102848ANorth_CarolinaScience6.01 Determine how convection and radiation transfer energy.66S102848BNorth_CarolinaScience6.02 Analyze heat flow through materials or across space from warm objects to cooler objects until both objects are at equilibrium.66S1028491North_CarolinaScience6.04 Evaluate data for qualitative and quantatitive relationships associated with energy transfer and/or transformation.66S1028496North_CarolinaScience6.06 Analyze response to heat to determine the suitability of materials for use in technolgoical design: • Conduction.66S1028499North_CarolinaScience6.07 Analyze the Law of Conservation of Energy: • Conclude that energy cannot be created or destroyed, but only changed from one form into another.66S10284AFNorth_CarolinaScience1.01 Identify and create questions and hypotheses that can be answered through scientific investigations.77S10284B1North_CarolinaScience1.02 Develop appropriate experimental procedures for: • Student generated questions.77S10284B5North_CarolinaScience1.04 Analyze variables in scientific investigations: • Identify dependent and independent.77S10284BDNorth_CarolinaScience1.06 Use mathematics to gather, organize, and present quantitative data resulting from scientific investigations: • Measurement.77S102853FNorth_CarolinaScience1.06 Use mathematics to gather, organize, and present quantitative data resulting from scientific investigations: • Measurement.88S1028556North_CarolinaScience2.03 Evaluate technological designs for: • Application of scientific principles.88S1028582North_CarolinaScience4.04 Describe the suitability of materials for use in technological design: • Electrical Conductivity.88United StatesCopyright 2012 - Techtronics Program, Pratt School of Engineering, Duke Universityhttp://www.teachengineering.org/policy_ipp.phphttp://www.teachengineering.org/2008-09-266Teacher