Download The EARTH FROM SPACE

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

page
1
page
2
page
3
page
4
page
5
page
6
page
7
page
8
page
9
page
10
page
11
page
12
page
13
page
14
page
15
page
16
page
17
page
18
Document related concepts
no text concepts found
Transcript 
THE EARTH FROM SPACE
 What colors do we
see on the earth from
space?
The EARTH FROM SPACE
 Blue
 White
 Green
 Brown
 _________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
The EARTH FROM SPACE
 What is the blue on
the earth?
 What is the white on
the earth?
 What is the green on
the earth?
 What is the brown on
the earth?
The hydrosphere- all
of the water
The atmosphere- all of
the air
The biosphere-all of
the life
The lithosphere-all of
the land
THE FOUR LAYERS OF
EARTH
 The Earth is
composed of four
different layers.
 The denser material
settled to the center
of the earth
 The lighter material
remained at the top
THE CRUST
 What is the crust of
the earth like?
 _________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
THE CRUST
 What is the crust of
the earth like?
 It is the thinnest,
least dense layer of
earth. (8km under
the oceans and 25
km under the
continents).
 Its temperature
varies from 23 C at
the top to 825 C at
the bottom
The crust
THE MANTLE
 What is the mantle?
 _________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
THE MANTLE
 What is the mantle?
 The thickest layer of
the earth, 2,800 km
 The temperature
reaches 1000 C
 The upper layer of
the mantle is called
the asthenosphere.
It is a solid that flows
like a liquid
THE MANTLE
THE OUTER CORE
 What is the outer
core like?
 _________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
THE OUTER CORE
 What is the outer
core like?
 It is liquid and made
of iron and nickel.
 It is 2000-2200 km
thick
 Its temperature is
3,700 C
INNER CORE
 What is the inner
core like?
 _________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
_________________
INNER CORE
 What is the inner
core like?
 The inner core is
solid and made out
of iron and nickel
 It is 1200-1400 km
thick
 Its temperature is
4,300 C
All Layers
HOW DO WE KNOW?
 How do we know
what is down in the
earth?
 Most of what we
know comes from
seismic waves
 P-waves refract and
reflect off of the solid
core
 S-waves disappear
because they cannot
travel through liquid
Related documents