Geosphere

Question 1

It has a depth of 6,400Km,
making it the largest sphere of
Earth. The _____ is constantly
in motion because the tectonic
plates are constantly in motion.
Continental drift describes one of
the earliest ways geologists
thought continents moved over
time.

Answer 1

geosphere

Question 2

Originally the continents of the
earth were one. Scientists refer
to this large continent as
___ and was surrounded by ___

Answer 2

Pangaea
Panthalassa

Question 3

The surface of Earth
* The thinnest layer.
* Outermost layer
* Made of solid rock.
* Contains all the mountains,
rocks, water, soil and land
features.
* Contains the lithosphere, oceanic
crust and continental crust.

5 – 25 miles thick

Answer 3

Crust

Question 4

Made from the Crust and Upper Mantle.
*
“Litho” means “stone” in Greek.
* This is the layer in which we live because it contains the oceanic
and continental crust.

Answer 4

Lithosphere

Question 5

The ___ is the
semi-rigid part of the middle
mantle that flows like hot
asphalt under a heavy
weight.

Think of it as a caramel.

Answer 5

asthenosphere

Question 6

Divided into two parts:
*Upper
*Lower
* Most of the mantle is solid rock.
* The lower mantle rock is softer.
* It makes up 85% of the Earth’s
mass.
* Temperatures can reach up to
870 C.

1,800 miles thick

Answer 6

mantle.

Question 7

*The ___ is Divided into
two parts:
* Outer
* Inner

Answer 7

Core

Question 8

_____ – only liquid layer!
* Made up of liquid iron and nickel.
* This layer creates the Earth’s magnetic
field.
* Temperatures can reach up to 2,200 C.

Answer 8

Outer Core

Question 9

___
* The center of Earth.
* Made up of scorching-hot iron and nickel.
This layer stays solid though due to intense
pressure.
* This layer may also contain oxygen, sulfur
and silicon.
* Temperatures range between 9,000 C and
13,000 C.

Answer 9

Inner Core