CreateanaccountinReefPolling

Iamtakingthiscoursebecause

A.  IheardaboutitfromafriendandIneedaDPtograduate

B.  Isawitadver>sedoncampusC.  MyadvisorrecommendeditD.  IfounditamongthecourseofferingsasIput

togethermyscheduleforthesemester.

TheUniverse

hCps://www.youtube.com/watch?v=rm5DxojGAEI

The Milky Way Galaxy, one of billions of other galaxies in the

universe, contains about 400 billion stars and countless other objects.

Whyisitcalledthe“MilkyWay?”

TheSolarSystemconsistsof

•  8classicalplanets•  5dwarfplanets•  240knownsatellites(moons)•  Millionsofcometsandasteroids•  Countlesspar>cles;andinterplanetaryspace.

Earth,theSun,andotherobjectsintheSolarSystemoriginatedatthesame>mefromthesamesourceandhaveevolvedinvarying

wayssincethen.

LearningObjec>ves–Chapter2

•  IcandescribeEarth,theSunandotherobjectsoftheSolarSystemandtheirchemicaldifferences.

•  IcanexplaintheSolarNebulaHypothesis.•  IcandiscussthesourcesofheattoearlyEarthandtheconsequencesofheatbuildup

hCp://bcs.wiley.com/he-bcs/Books?ac>on=resource&bcsId=6216&itemId=047122037X&resourceId=25173

Terrestrialplanetsaresmallandrocky,withthinatmospheres,silicateandmetallicshells.

O,Fe,Si,Mg,Ca,K,Na,Al

MERCURY VENUS EARTH MARS

GasGiantsaremassiveplanetswiththickatmospheres.

He, H, CO2, H2O, N2, CO, NH3, CH4

Jupiter

Saturn

Uranus

Neptune

Direc>onoftravel

Direc>ontoSun

Comet

Asteroid