Standard S6E5 Students will investigate the scientific view of how the earths surface is formed a Compare and contrast the Earths crust mantle and core including temperature density and composition ID: 384908
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Earth’s CompositionStandard S6E5. Students will investigate the scientific view of how the earth’s surface is formed. a. Compare and contrast the Earth’s crust, mantle, and core including temperature, density, and composition. Slide2
CRUST: The first layer of the earth is called the crust.It is the layer of the
Earth
where we
live
.
It is the
outer
most (
outside
) layer of the Earth.
It is a
solid
and is up to
100 kilometers
thick.
It is the
coolest
in temperature of
all
the layers.Slide3Slide4
6. It is composed (means made of) minerals and rocks and is mostly made of granite and basalt.
7. The part of the crust where the
continents
are is known as
continental
crust. This is the
thickest
part of the crust.
8. The part of the crust beneath the
ocean
water is known as the
oceanic
crust, the
thinnest
part of the crust.Slide5
Difference in Continental and Oceanic CrustSlide6
MANTLE:9. The second layer of the Earth is the Mantle.10. It is the largest layer with a thickness up to 2,900 kilometers.
11. It has the most
mass
of all the layers.Slide7Slide8
12. It is a solid made of molten (melted) rock that flows like melted plastic.13. It is composed (means made of) mostly magnesium . 14. The mantle’s temperature is higher than the crust reaching up to
3,000°C
. Slide9
Magma: hot flowing melted rockSlide10
CORE: It is the center (middle) layer of the Earth. There are two parts to the core.Slide11
Outer Core:15. It is made of molten/liquid iron and nickel.
16. Its thickness is
2,300
kilometer
.
17. It is
hotter
than
the mantle.Slide12
Inner Core:18. The inner core is made of solid iron and nickel because it is the innermost region of earth. Since it is under such extreme pressure
, the metals become a solid.
19. The inner core has the
highest
temperatures of all the layers.Slide13Slide14
20. It has a thickness of 1,200 kilometers.21. It is the most dense of all the layers.
Solid Nickel
Solid IronSlide15
Other Information If you were able to journey down to the center of the earth, you would observe an increase in pressure, temperature, and density.Slide16Slide17
The Earth’s mantle is made up of very hot material that rises to the top of the mantle, cools, then sinks, reheats, and rises again, constantly repeating the cycle. These convection currents (energy transferred by circulation of a liquid or a gas) cause the Earth’s crust to move.Slide18Slide19
If an oceanic plate collided with a continental plate of the crust, the oceanic plate would be pushed under the continental plate.Slide20