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74 Cards in this Set
- Front
- Back
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what force causes defletion of wind and water on the earths surface?
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coriolis effect
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what do the following measure : psychrometer, barometer, themometer?
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humidity , air pressure & tempature
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what causes wind to blow?
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when air moves rom HP to LP
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how does air flow around a low pressure system?
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clockwise
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how does air flow around a high pressure system?
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counterclockwise
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which front moves fast, has heavy periods of rain, and is followd by COOLING tempature?
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cold front
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which front moves slowly, has long periods of rain/snow and is followed by WARMER tempatures?
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warm front
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which belt dominates the usa?
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prevailing westerlies
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which ways to weather systems usually move across the country?
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west to east
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what 2 gases and percentage makes up the majority of our atmosphere?
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nitrogen (78%) & oxygen (21%)
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difference between our atmosphere and the early atmosphere?
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before there was less oxygen
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carbon dioxide has been increased by what ?
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burning of fossil fuels
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CFC's are destrouing what ?
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the ozone layer
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which part of earth recieves the most direct radiation?
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equator
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water vapor condensatio ust occur for what to form?
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a cloud
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wheredo comets originate?
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Oort clouds
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what are comets made of?
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ice, rock , iron, & gases
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which way does a comts tail ALWAYS point?
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solar windmakes it point away from the sun
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what is thecoma of a comet?
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the nucleus or center
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what are the planets of our solar system?
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mercury , venus , earth, mars, jupter, saturn , uranus , neptune
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why do we see the moon?
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cause light from the sun reflects off of it
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what and when does the longest day of the year occur?
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summer soltice & june 20-21
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what and when does the shortest day of the year occur?
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winter solstice & december 21-22
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on what 2 days of theyear do we have equal amount of day and night?
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sep. 22-23 & march 21-22
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which direction does earth rotate?
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west to east
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define astroid
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rocks made of iron and metalic the revolve around earth
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where do you find he astroid belt?
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between mars and jupiter
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what measurement do we use to measure the distances between us and objects in other galaxies?
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internationasl astronomical units
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what mission was the first to land onthe moon?
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apollo 11
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who was the first person to walk on the moon?
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neil armstrong
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what is the big bang therory?
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orgin of the universe ( 13.7 billion years ago )
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what is the solar nebula theory?
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slowly spinning cloud, cloud shruck, spins faster, flatens into a disk with a buldge , inner disk heats, dust and gases made planets
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what is a black hole?
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region of space where nothng escapes
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what is the name of our galaxy?
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milky way
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what hap is our galaxy ?
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sprial
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what equpment has improved our knowledge of space and the universe?
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the hubble telescope
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what are red shifts?
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motions the describe to us our universe is expanding
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gas giants
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jupiter , saturn, uranus, neptune
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rock plantes
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mercury, mars, venus, earth
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life cycle of a star:
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nebula , protostr, yellow main sequence star, red giant, white dwarf, black dwarf
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which province in virginia is the flattest?
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costal plain
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where did the sediments in the costal pains originate?
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washed down from the app.mountains
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which province has the oldest rocks?
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blue ridge
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mineral properties depend on their what?
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atmi structre
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define weathering
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breaking up of rocks
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which climate would you expect to find the most chemical weathering?
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warm / wet
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which climate woud you excpect to find the most mechanical weatherng ?
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cold
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what 3 forces can transport the earths materials?
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wind, water, gravity
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which force is the main agent of erosion?
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moving water
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define deposition
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dropping of sedments
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what process changes magma into an igneous rock?
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cooling & crystalization
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what process changes igneous rocks into sediments?
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weathering
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compaction & cementation canges a sedemn into what?
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sedimentary rock
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what proces changes a metamorphic rock in to magma?
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melting
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wat process changes asedimeny rock into metamorphic?
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heat and pressure
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is earths water renewable ?
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yes
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4 layers of earth are?
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crust, mantel coe, liquid core
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what elemens are the core made of?
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Fe, Ni
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deine lithosphere
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outer part of erth consuming of crut and mantel
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which is olde contential or oceanic crust?
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contenintal
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whichis thickker oceaniccrust or contnintal crust?
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contenintal
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which is more dense , ocenc or contenital crust?
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oceaic
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what is the ocenic crus made of ?
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basaltic
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what moves tectonic plates?
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convection currents
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1st step to formatin of soilll?
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bedrock breaks down
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what is karst topography?
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layers and layers of bedrock
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ground water zones
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aeriation, water table, saturaton
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define aquier
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layer of rock water can move through
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define spring
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ground wter ta gets to surface and flow on
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3 lanforms created by converget boundaries?
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trenches, mtns,& volcnoes
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3 lanforms created by diergent boundaries?
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river valleys, mid ocean ridges and volcanoes
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what is produced at a transform pate boundary ?
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earthquakkes
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define fault
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break down in earths crust
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which earthquakke waves travel fasest?
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p-waves
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