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Finalsummativeassessment: Astronomy Directions:You(andonepartnerifyouchoose)willbe assignedoneofthethreescenariosorsituations.Youwill createapresentationtoshowyourunderstandingofthe conceptsforthatparticularscenarioorsituation.Itisyour choiceastohowtheinformationistobepresentedtoyour class:aPowerPoint,amovie,aposter,etc.Youmusthavea slide,poster,clipforeachofthedifferenttopics(year, days,season,moonphases,eclipses)minimum.Youmust haveyourpresentationchoiceapprovedbyyourteacher beforebeginningthein-classproject.Youwillbe presentingthesetotheentireclassatsomepoint. FinalAstronomySummative AssessmentSituation1: Asteroid! Directions:Readeachstatementandanswer thefollowingquestionsastohowthestatement wouldaffectEarth. BreakingNews: AsmallasteroidhasstruckEarth!Even thougheveryoneonEarthsurvived(the asteroidwassmallandlandedintheocean),thishascausedsignificantchangestoEarth. NASAhasconfirmedthattheEarth’stiltof23.5degreeshaschanged.Earthisnowtilted thesameasMercury.ThiscollisionhasalsopushedEarthclosertotheSun.NowEarthhas anaveragedistanceof129,000,000kmtooursolarsystem’sstar.Furthermore,the collisionhascausedtheEarthtonowrotatefaster,rotatingatthesamespeedasSaturn. InadditiontothedamagedonetoEarth,partoftheasteroidbrokeoffandcollided withourMoon.TheMoonstillorbitstheearth,butnowitorbitsonthesameorbitalplane asEarthandrevolvesonlyovertheequator,butatthesamespeed. Yourpresentationmustanswerallofthequestionsbelowtoshowyourunderstandingof thescenario.Thisincludesexplainingwhy,whatandhowthe“breakingnews”willaffect Earth,includingalllivingandnonlivingthings. 1. Willthelengthsofayearchange?Ifso…explainwhy. 2. HowlongdoesitnowtakeEarthtoorbittheSunindays?(useformula) 3. Whatisyourreasonforthechangeinthelengthofouryear? 4. Willthelengthsofadaychange?Ifso…explainwhy. 5. HowlongisadayonEarth,inhours,asaresultofthiscollision?(useformula) 6. Whatisyourreasonforthechangesinlengthofaday? 7. Willtheseasonschange?Ifso…explainwhy. 8. WhatisyourreasoningforthechangeinseasonsonEarth? 9. Willmoonphasesbeaffected?Ifso…explainwhy. 10.WilltheEarthstillhaveeclipses?Ifso…explainwhy. 11.Willeclipseshappenateveryfull/newmoonphase?Explainwhyorwhynot. FinalAstronomySummative AssessmentSituation2 IceCapsaremelting! Directions:Readeachstatementandanswerthe followingquestionstohowthestatementwould affectEarth. BreakingNews: Oceanlevelshavebeenslowlyandsteadilyrising overthelastcoupleofdecades.Duetothese recentdrasticandrapid“climatechanges”,the SouthPoleismeltingevenfasterthanbefore,like anicecubeonahotsidewalk.Duetothese changes,theEarthisunevenlyweightedandhasbeguntotipover.Afterconsultingwith NASA,youhavediscoveredthatEarth’stiltof23.5degreesisactuallyincreasingatarapid rate.CurrentlyitistiltedthesameasNeptune.Thischangeintilthasalsocausedthe Earthtorotateatamuchfasterrate.Earth’srotationnowtakesthesameamountoftime asNeptune’s.Withthisnewrotation,theEarthhasmovedfurtherawayfromtheSun, whichisnow34,000,000kmfurtherawaythanwhereitusedtobe.Withallthisincreased spinning,asectionoftheEarthhasbrokenoffcreating2moonsorbitingEarth.Both moonsarenoworbitingtheEarthonthesameorbitalplane,butstayontheexact oppositesidesoftheEarth. Yourpresentationmustanswerallofthequestionsbelowtoshowyourunderstandingof thescenario.Thisincludesexplainingwhy,whatandhowthe“breakingnews”willaffect Earth,includingalllivingandnonlivingthings. 1. Willthelengthsofayearchange?Ifso…explainwhy. 2. HowlongdoesitnowtakeEarthtoorbittheSunindays?(useformula) 3. Whatisyourreasonforthechangeinthelengthofouryear? 4. Willthelengthsofadaychange?Ifso…explainwhy. 5. HowlongisadayonEarth,inhours,asaresultofthemelting?(useformula) 6. Whatisyourreasonforthechangesinlengthofaday? 7. Willtheseasonschange?Ifso…explainwhy. 8. WhatisyourreasoningforthechangeinseasonsonEarth? 9. Willmoonphasesbeaffected?Ifso…explainwhy. 10.WilltheEarthstillhaveeclipses?Ifso…explainwhy. 11.Willeclipseshappenateveryfull/newmoonphase?Explainwhyorwhynot. FinalAstronomySummative AssessmentSituation3 Mooncollision! Directions:Readeachstatementand answerthefollowingquestionstohow thestatementwouldaffectEarth. BreakingNews: AnasteroidhasstruckourEarth’sMoon. Youdidnotseethecollisionbecauseit wasduringaFullMoonandithappened duringyourdaytime.Ourmoonisnot thesameasitwas.Nowwehavetwomoons.Ouroriginalmoonisnowsmallerand missingachunkoffitsside,butitstillorbitsatthesame5˚orbitalplaneasbeforethe collision.Thenew“second”moonappearstobethepiecefromouroriginalmoon.This newmoonisalsorevolvingaroundtheEarthbutonthesameorbitalplaneastheEarth andSun.EachmoonisnowexactlyaquarteroftherevolutionaroundtheEarthfromeach other.Thesecondmoon’sgravityhaspulledtheEarthoveronitssideandwearenoware tiltedthesameasUranus,althoughweneverfeltthischangeandnothingonEarthwas damagedduringthisprocess.WiththeEarthtipping,ithascausedtheEarthtobecome 16,000,000kmclosertotheSun.ThetipalsodecreasedEarth’srotationtoeequalto½of Pluto’srotation. Yourpresentationmustanswerallofthequestionsbelowtoshowyourunderstandingof thescenario.Thisincludesexplainingwhy,whatandhowthe“breakingnews”willaffect Earth,includingalllivingandnonlivingthings. 1. Willthelengthsofayearchange?Ifso…explainwhy. 2. HowlongdoesitnowtakeEarthtoorbittheSunindays?(useformula) 3. Whatisyourreasonforthechangeinthelengthofouryear? 4. Willthelengthsofadaychange?Ifso…explainwhy. 5. Howlongisaday,inhours,onEarthasaresultofthiscollision?(useformula) 6. Whatisyourreasonforthechangesinlengthofaday? 7. Willtheseasonschange?Ifso…explainwhy. 8. WhatisyourreasoningforthechangeinseasonsonEarth? 9. Willmoonphasesbeaffected?Ifso…explainwhy. 10.WilltheEarthstillhaveeclipses?Ifso…explainwhy. 11.Willeclipseshappenateveryfull/newmoonphase?Explainwhyorwhynot. PlanetaryDataFactSheet/Formulas Distancefrom theSun(km) Periodof Revolutio n(Earth years) Numberof Moons Tiltonaxis 59 58,000,000 .24 0 0.1˚ 12,104 243 108,000,000 .62 0 177˚ Earth 12,756 1 150,000,000 1 1 23.5˚ Mars 6,694 1.03 228,000,000 1.9 2 25˚ Jupiter 142,800 0.41 778,000,000 12 63 3˚ Saturn 120,540 0.43 1,427,000,000 29 81 27˚ Uranus 51,200 0.72 2,871,000,000 84 27 98˚ Neptune 49,500 0.67 4,497,000,000 165 19 30˚ Pluto 2,200 6.4 5,913,000,000 248 1 120˚ Planet/ Celestial Body Diameter (km) Periodof Rotation (Earthdays) Mercury 4,878 Venus Formulaforfindingrevolution: Scenariodistance÷Earth’sdistance(datatable)X365=lengthofayearforplanetindays. Formulaforfindingrotation: ScenarioperiodofRotationx24hours=Lengthofdayforplanetinhours.