science test 1

Term Definition
exosphere space
thermosphere outermost layer of earth
mesosphere shooting stars
stratosphere contains the ozone layer
troposphere where we live
hydrosphere all of water
atmosphere a life-sustaining,thin,gaseous,envelope
lithosphere layer of bedrock near the earths surface
biosphere includes all life on earth
crust a thin outer layer of earths oceanic crust and continental crust
upper mantle (asthenosphere) a small layer of partially melted rock that moves due to convection currents
lower Mantle (stiffer mantle) a thick layer of solid rock
outer core inner layer of liquid rock composed of iron and nickel
inner core solid center of the earth composed of iron and nickel
why does earth 's interior have layers? earth has layers because denser elements
water is most dense at 4 degrees C in the liquid phase
true shape of the earth oblate spheroid
best model of the earth is a ping pong ball or golf ball (a perfect circle)
latitude lines are drawn east-west and measure north and south
longitude
as pressure increases density increases
as temperature of matter increases its density increases (ex:warm air rises)
dynamic equilibrium (constant) means balance
direct relationship as x increases, y increases
indirection/inverse relationship as x increases, y decreases
rate of the earths rotation 15 degrees per hour
time zones 15 degrees = 1 hour
the prime meridian is located at 0 degrees longitude
the equator is located
all locations in new York state i measured north latitude and west longitude
under the same temperature and pressure,
mass the amount of matter in an object
volume the amount of space an object takes up
density mass/ volume
gravity is the force of attraction between any two objects
the distance between two objects increases gravity decreases
as the mass of an object increases gravity increases
how many hours does it take the earth to rotate 360 degrees
as you move west from 0 degrees longitude (prime Meridian) you must subtract a hour approximately 15 degrees
if you are west of the prime meridian time is earlier
as you move east from the 0 degrees longitude you must add an hour approximately every 15 degrees
if you are east of prime meridian your time is later
stars circumpoler
the norther hemisphere all the stars appear to rotate around polaris
the pointer stars in the big dipper point north towards polaris
polaris is also known as the north star
as you move north and your latitude increases the altitude of polaris also increases

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