restless earth (structure of the earth)

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what is the atmosphere?
the atmosphere are the gases which make up the air that we live around.
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name 2 gases that are in the atmosphere and why we need them?
1) we need oxygen so animals and humans are able to breath. 2) we need carbon dioxide as plants take in carbon dioxide and breath out oxygen.
2 of 11
what is the hydrosphere?
the hydrosphere is where were the water is contained for example in lakes and in rivers.
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why do we need the hydrosphere?
so we are able to keep the water cycle which goes around are planet.
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what is the Geosphere?
where there are heated rocks below the crust which are heated up by the earths core.
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why do we need the earths core?
we need the earths core so that we are able to produce a magnetic feild which sheilds us from incoming astroides which may damage are planet.
6 of 11
what is the biosphere?
where there is a layer of orginasims which live and survie on the planet.
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name the 3 core's that there are in the geosphere?
1) inner core 2) outer core 3) lower mantle.
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what is the continetal crust?
where there is life which lives on this type of crust and were they can only survie.
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what is the oceanic crust?
this is the crust where water is filled.
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which crust in denser but however is also thinner?
the oceanic crust
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Other cards in this set

Card 2

Front

name 2 gases that are in the atmosphere and why we need them?

Back

1) we need oxygen so animals and humans are able to breath. 2) we need carbon dioxide as plants take in carbon dioxide and breath out oxygen.

Card 3

Front

what is the hydrosphere?

Back

Preview of the front of card 3

Card 4

Front

why do we need the hydrosphere?

Back

Preview of the front of card 4

Card 5

Front

what is the Geosphere?

Back

Preview of the front of card 5
View more cards

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