Download Earth`s Interior

Earth’s Interior
Chapter 4 Section1
• What is a geologist?
• Geologists are
scientists who study
the forces that make
and shape planet
earth.
• What is Geology?
• Geology- is the study
of planet Earth.
•What is geology video 1 min
• What are the • Geologists divide the forces
two types of
that change earth’s surface into
forces?
two forces:
• Constructive- builds land up
(mountains)
• Ex: earthquakes, volcanoes,
and deposition
• Destructive – wears away the
land.
• Ex: weathering
• How do we know • Geologist use the data
what the inside of
record from seismic waves
the Earth is made
created by earthquakes.
out of?
They study how they travel
through earth and predict
what the interior of Earth is
made of.
• Seismic waves video
• Describe the
two types of
crust. What are
they made of?
Layers of the Earth
• Crust – The layer of rock
that forms earth’s outer skin.
Two Types of Crust
– Oceanic crust is mostly
made of Basalt rock.
– Continental crust –made
mostly of Granite.
• Mantle
• Describe
the two
layers of
the mantle.
• Mantle (Middle Layer)
Made of two layers
– Asthenosphere – the upper
layer of the mantle and is
made of molten magma. (tar
or pudding like)
– Lower mantle- made of hot
solid magma.
• What two
• The lithosphere is a solid layer
layers does the
made of the crust and upper
lithosphere
part of mantle.
consist of.
Lithosphere
video clip
• Describe the • Core
two layers of
Two Layers of the core
the core.
– Outer core is a layer of molten
metal
• The_Inner_Core
video
• The core video.asf
– Inner core is a dense ball of
solid metal. The metal is made
of iron and nickel.
Fill in the chart
Main
Layer
Sub-layer
Crust
Oceanic Crust
Continental
Crust
Lithosphere
Mantle Asthenosphere
Lower Mantle
Core
Outer Core
Inner Core
Solid What is the layer
or
made of?
molten
Layers of the Earth
Crust
Oceanic Crust
Solid
Continental Crust Solid
Lithosphere
Solid
Mantle
Asthenosphere
Lower Mantle
Outer Core
Inner Core
Core
Basalt Rock
Granite Rock
Crust and small
solid layer of
mantle.
Molten Magma
Solid
Magma
Molten Iron and Nickel
Solid
Iron and Nickel
Layers of the Earth
G.
E.
D
.
C.
B.
A.
F.
A.Inner Core = Solid
Metal
B.Outer Core = Molten
Metal
C.Mantle = Solid Magma
D.Asthenosphere =
Molten Magma
E. Lithosphere = Solid
Crust and Magma
F.Continental Crust =
Solid granite rock
G.Oceanic Crust = Solid
Basalt Rock