Transcript Activity 38 Power Point

ACTIVITY 38 Beneath the Earth’s Surface
ACTIVITY 38: BENEATH THE EARTH’S
SURFACE
 Challenge: What is beneath the earth’s surface?
 Key Vocabulary:
 Inner core
 Outer core
 Crust
 Mantle
 Lithosphere
REMEMBER:
Scientists agree that the safest way to store nuclear
waste is to store it underground
How deep should we store it?
Lets think about what the inside of the Earth looks
like…….
 Imagine taking a glass elevator to the center of the earth. What
would you see?
 Glue SS 38.1 into your notebooks. This is conceptual model.
The large circle with the dot at its center is intended to
represent a physical object: the Earth
 Draw what you think the earth is like as a cross-section of the
Earth’s radius.
 Complete SS 38.1, including the estimation of the distance to
the center of the earth and place an X at the depth you think
nuclear waste should be stored.
WHAT DO YOU THINK????
 Do you think the inside of the earth is completely solid?
 If so, what kind(s) of solid material do you think is there?
 If not, what type of substance(s) do you think is there?
 What do you think the temperature(s) inside the earth
might be?
OPEN TO PAGE D-15
I will read the different sections to you.
When we stop, please write in your
notebooks what you heard/understood
from the reading
ON THE EARTH’S SURFACE…..
 Create a chart in your notebooks to compare the three types of
volcanoes:
Type of Volcano
Shield Volcano
Cinder Cone
Volcano
Composite Volcano
(aka Stratovolcano)
Description
Example
Drawing
ON THE EARTH’S SURFACE…..
 Create a chart in your notebooks to compare the three types of
volcanoes:
Type of Volcano
Description
Example
Shield Volcano
Large and broad, release
fast-moving, less gassy
lava, tend to have less
explosive eruptions
Oregon’s
Mount
Bachelor
Cinder Cone
Volcano
Smallest, most common,
explosive eruptions,
often form on sides of
larger volcanoes
Mount Etna in
Italy
Composite Volcano Have explosive eruptions
(aka Stratovolcano) because of more gassy
lava. Formed by layers of
lava and ash.
Mt Saint
Helens,
Washington
State
Drawing
INSIDE THE EARTH……
Make sure to define:
Crust
Mantle
Inner core
Outer core
Lithosphere
Please make a
sketch in your
notebooks and
label Crust, Mantle
Core.
Crust – Thinnest layer of the
Earth; (~40 km deep) made of
many kinds of rocks; 0-700˚C
Mantle – Is ~2,760 km deep; upper
part is solid, lower is liquid; made of
iron, magnesium, and silicon
compounds, 700-2800 ˚C
Inner Core – 1200 km
deep; solid iron and nickel,
Over 6,000 ˚C
Outer Core – Is ~2400 km
deep; liquid iron and nickel;
2,800 – 5,200 ˚C
SS 38.2
Glue into your notebook.
With your group, use SS 38.2 to answer
Analysis Questions 3 and 4
Once you are done, compare your initial
drawing to your scaled drawing.
#3
#4
a.
At 300 meters (0.3 km) the waste will be stored
in the crust
b. Make sure to mark approximately where that is
on your chart.