A view of the earth DIAMETER EQUATOR n 12,756 KM.

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Presentation transcript:

A view of the earth

DIAMETER EQUATOR n 12,756 KM

DIAMETER POLES n 12,740 KM

SURFACE n 30% LAND n 70% WATER

ROTATION n 23 HOURS n 56 MINUTES

REVOLUTION n 365 DAYS

HIGH SPOT n MT. EVEREST n 8848 METERS ABOVE SEA LEVEL

LOWEST SPOT n MARIANA TRENCH n PACIFIC OCEAN n 11,033 BELOW SEA LEVEL n AVERAGE 3795 METERS BELOW

3 MAIN FEATURES OF EARTH

WATER

LAND

AIR

ESS EARTH SYSTEM SCIENCE

LITHOSPHERE n ROCKS

ATMOSPHERE n AIR

HYDROSPHERE n WATER

BIOSPHERE n ANIMALS & PLANTS

HISTORY OF THE ATMOSPHERE

4 BILLION YEARS AGO n METHANE n AMMONIA n SOME WATER

3.8 MILLION YEARS AGO n SUNLIGHT n REACTION FORMED n NITROGEN n HYDROGEN n CARBON DIOXIDE

OXYGEN n FORMED BY BLUE GREEN ALGEA

NITROGEN

OXYGEN

n CARBON DIOXIDE n WATER VAPOR n ARGON

ENJOY THE HOMEWORK n DRAW & ID: n NITROGEN CYCLE PG 185 n CARBON DIOXIDE CYCLE PG 187 n PROBLEM SOLVING PG 190

PRESENT TIME

LAYERS OF ATMOSPHERE

TROPOSPHERE n WHERE WE LIVE n WHERE WEATHER OCCURS

STRATOSPHERE n COLD -60 DEGREES n OZONE

MESPSPHERE n -100 DEGREES n METEORS BURN UP IN THIS AREA

THERMOSPHERE n HEAT SPHERE n 2000 DEGREES n PARTICLES MOVING QUICKLY CREATE HEAT n ABSORB ULTRAVIOLET LIGHT

exosphere n Upper thermosphere n Artificial satellites in area

ionosphere n Lower thermosphere n Radio waves n Bounced off of ions

magnetosphere n Area extending around atmosphere n Traps deadly radiation

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