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1、Name:_____________________________________________Period:________MAKINGATHREEDIMENSIONALTOPOGRAPHICMAPAtopographicmapshowselevation.Each"circle"(theseareneverperfectcircles-usuallyverysquiggly)andsometimesonlypartofthecircle,indicateshowhighabovesealeveltheareais.Thesecirclesarecall
2、edcontourlines.Ascontourlinesgetsmallerandclosertogether,thisindicatesthelandgettinghigherandsteeper.Thesmallestcircleisthehighestpointonthemap.Determinethetopographicmapthatyouwishtousetomakeyourmodel.Themorelinesonamap,theharderitwillbetocreate.Keepitfairlysimple.Yourmodelmusthave
3、atleastfive(5)contourlines,ahighpoint(amountain),ariver(whereacontourlinecrossesastreamorvalley,thecontourbendstoforma"V"thatpointsupstreamorvalley),acompassrose,astatementofthecontourinterval,ascale,andanylandmarksorfeaturesthatwouldbefuntoshow,suchasadepression(showwithhachuremark
4、s),roads,oralake.Tomakeathreedimensionalmodelofatopographicmapfollowthedirectionsbelow.Step1Cutoutthelowestelevationwhichshouldbetheoutermostandbiggestcircle,orcontourline.Therewillbesmallercirclesinthemiddle.Ignorethosefornow.Traceyourcut-outonthematerialyouaremakingthemodeloutofan
5、dcutitout.Thisisthebaseofyour3-Dmodel.Step2Repeatthisprocedurefortherestofthelinesonthetopographicmap.Cutouteachcontourlinecircle,traceontothematerial,andcutoutthematerial.Yourcirclesshouldgetsmallerandsmaller.Goaheadanddiscardyourcut-upmappiecesonceyouhavethecut-outstokeep.Numberth
6、ecutouts.Besuretokeepthecut-outsstackedupinorder,sothebiggestpieceisonthebottom.Step3Glueorattacheachcut-outtoonebelowit.Letthegluedry.Step4(Optional)Onceallyourcut-outsaregluedtogetheryoumayusedough,papermâché(seerecipesbelow)ormodelingclaytogivethemodelasmootherlook.Step5Paintandl
7、abelyourmodel(Letthedough,papermâchéorclaydry).Step6CreateacompassroseonacornerofthemapwithfourarrowsthatdesignateNorth,East,South,andWestandaddascale,whichwillrepresentthedistance.Forexample,oneinchrepresentsonemile.EXTRACREDITPROJECTPage1Makinga3DTopoMapName:______________________
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