Download plate boundaries

Monday :
Students will take notes describing the Earth Layers
FF: ROAD SALT, THE MINERAL HALITE, IS SOMETIMES USED TO MELT SNOW AND ICE. A SCIENTIST SET UP AN EXPERIMENT TO
TEST HOW ROAD SALT AFFECTS THE GROWTH OF NEARBY GRASS.
A. THE AMOUNT OF SALT USED
B. THE GROWTH OF THE GRASS
C. THE AREA OF GRASS TREATED WITH SALT
D. THE DURATION OF THE EXPERIMENT
WHAT IS THE DEPENDENT VARIABLE?
EQ: HOW WOULD YOU DESCRIBE THE MAIN THREE LAYERS OF EARTH?
Earth Layer Notes:
8-3.1: Summarize the three layers of Earth – crust, mantle, and core – on the basis
of relative position, density, and composition.
•
The Earth is made up of 3 main layers: __________________________________________________________
•
•
The Core is broken down into 2 sections: ________________________________________________________
The core of the Earth is like a _________________ of very ______________________________________.
Label the Following Diagram
ALTHOUGH THE EARTH HAS 3 MAIN LAYERS, IT INLCUDES OTHER LAYERS AS WELL. THE EARTH HAS
_______ LAYERS OVERALL.
LIST THE 6 LAYERS IN ORDER:
EARTH LAYERS DESCRIPTION CHART: STUDENTS SHOULD COMPLETE THE CHART
Layer
Crust
Location/Relative Composition
Position
or State of
Matter
The layer we Live
on
Important Facts
Density
2 types of crust:
Continental Crust (contains
_____________________ rock
and is the thickest crust) and
Oceanic (contains
______________________ rock
and is the thinnest crust but is the
most dense and the youngest
because it’s being recycled
through subduction.
Composed of ________________ Dense
plates or
_____________________plates
Lithosphere
Thickness
Thin
The plates floats on top of the
_______________________
Asthenosphere
Mantle
Outer Core
Inner Core
The
____________________________
plates moves or floats on top of
the asthenosphere
The mantle is
located between
the
asthenosphere
and the outer
core.
Between the
Mantle and Inner
Core
The rocks in the mantle flows
because of
___________________________.
Convection currents in the mantle
moves the
____________________ layer
that moves the
____________________plates
Dense
Thin
Gets denser
as you move
down from
the upper
mantle to the
lower mantle
Denser than
the mantle
Thick
Thick
FF: WHY IS THE INNER CORE A SOLID AND NOT A LIQUID?
EQ: HOW WOULD YOU EXPLAIN INDEPENDENT AND DEPENDENT VARIABLE IN YOUR OWN WORDS?
Tuesday: Continuation of Earth Layers: Students will Create an Earth Layer Foldable. Students should use this mock
foldable to be a guide for their actual foldable.
OCEAN WATER/ LIGHT BLUE
CONTINENTAL CRUST/LIGHT BROWN ------OCEANIC CRUST (2) DARK BROWN
LITHOSPHERE/BLACK (YOU WILL HAVE TO CREATE YOUR OWN LITHOSPHERE AREA
ASTHENOSPHERE (UPPER MANTLE) /
MANTLE/ORANGE
LIGHT ORANGE
(COLOR THE MANTLE AND THE LOWER MANTLE THE SAME COLOR)
(MAKE SURE YOU LABEL THE CONVECTION CURRENT SYMBOLS)
OUTER CORE/
LIGHT RED OR PINK
INNER CORE/ RED
NOTE: MAKE SURE YOU USE YOUR EARTH LAYER DESCRIPTION CHART TO FILL IN THE INFORMATION.
TUESDAY HOMEWORK:
DIRECTIONS: ANSWER THE FOLLOWING QUESTIONS ON ANOTHER SHEET OF PAPER.
1. WHAT ARE THE 3 MAIN EARTH LAYERS?
2. WHICH EARTH LAYER IS RESPONSIBLE FOR THE MAGNETIC FIELD?
3. WHICH EARTH LAYER IS LIES BETWEEN THE CRUST AND THE UPPER MANTEL?
4. WHICH LAYER IS THE ONLY LIQUID LAYER?
5. WHY IS THE INNER CORE A SOLID AND NOT A LIQUID?
6. WHAT ALLOWS THE SOFT ROCKS TO FLOW IN THE MANTLE?
7. WHAT IS THE UPPER MANTLE CALLED?
8. WHICH LAYER IS THE LITHOSPHERIC OR TECTONIC PLATES FOUND?
9. WHICH LAYER IS THE MOST DENSE LAYER?
10. WHICH LAYER IS THE THINNEST AND WHICH LAYER IS THE THICKEST LAYER?
11. WHICH LAYER CONTAINS THE MOST MASS?
12. WHAT IS THE LAYER WE LIVE ON?
13. THE CORE IS KNOWN AS WHAT?
14. WHAT 3 LAYERS ARE TRUE SOLIDS AND WHICH 3 LAYERS ARE NOT TRUE SOLIDS?
15. THE LITHOSPHERIC OR TECTONIC PLATES FLOATS ON TOP OF WHICH LAYER?
16-20. CREATE A CHART LISTING THE 4 DIFFERENCES AMONG THE CONTINENTAL AND OCEANIC CRUST.
8-3.6
Explain how the theory of plate tectonics accounts for the motion of the lithospheric plates, the geologic activities
at the plate boundaries, and the changes in landform areas over geologic time.
The Theory of Plate Tectonics
 The theory of plate tectonics explains why and how large sections of Earth’s crust, called lithospheric plates,
move. A hypothesis of continental drift was developed before the present theory of plate tectonics. It was
based on ___________________________________________________________________________________.
This hypothesis later led to the theory of plate tectonics when evidence was found as to why the plates could move.
Plate tectonics explains how many _______________________________________________.
Changes in Landform areas over Geologic Time
• __________________________________________ within the mantle have broken the layer below the crust
into blocks, called plates, which slowly move around, colliding to build mountains or rifting/spliting apart to
form new seafloor.









Except in the crust, the interior of the Earth _________________________ be studied by drilling holes to take
samples. Instead, scientists map the interior by watching how ______________________________ from
_____________________ are bent, reflected, sped up, or delayed by the various layers.
The Earth’s crust is divided into _________________major plates, which are moved in various directions.
Plates move at very _____________________ rates – from about _________ to _________ centimeters per year;
At one time in geologic history the ____________________________ were ____________________together in one
large landmass that was called __________________________.
As the plates continued to move and split apart, ______________________were formed, _____________________
collided and split apart until the Earth’s landmasses came to be in the positions they are now;
Evidence of these landmass collisions and splits comes from
______________________________________________________________________________________________
Landmass changes can occur at ______________________ (volcanoes) within ____________________ plates;
Earth’s landmasses will continue to move and change during the geologic time of the future.
Motion of the Lithospheric Plates
 Plates float on the _____________________________ of the mantle.
 _________________________________________ can cause the asthenosphere to flow slowly carrying with it the
plates of the lithosphere.
 This movement of plates changes the sizes, shapes, and positions of Earth’s ___________________ and
_________________.
 “Plates” of lithosphere are moved around by the underlying hot mantle convection cells
Wednesday Homework: Define the following words in your glossary: crust, continental crust, oceanic crust,
lithosphere, asthenosphere, mantle, convection currents, outer core, inner core, tectonic plates, Pangaea, and the
theory of plate tectonics.
THURSDAY: STUDENTS WILL COMPLETE THE PLATE BOUNDARIES DESCRIPTION CHART AND NOTES.
FF: THE ORDER OF THE LAYERS OF THE EARTH FROM THE THICKEST TO THINNEST IS _______.
EQ: HOW WOULD YOU EXPLAIN WHAT IS HAPPENING AT THE 3 TYPES OF PLATE BOUNDARIES?
PLATE BOUNDARIES
 WHAT ARE THE 3 TYPES OF PLATE BOUNDARIES? _______________________________________________
 WHAT ARE THE KEY WORDS FOR THE 3 TYPES OF BOUNDARIES?
BOUNDARY
KEYWORD
ARROWS
DIVERGENT
CONVERGENT
TRANSFORM
Divergent Boundary
Convergent Boundary

2 Plates spread or move 

______________

most located along
______________________
___________ (sea-floor
spreading or a line of





__________________on 
the bottom of the
ocean)
_________________
forms because
____________ pushes up
and hardens between
separating plating
Continental Crust forms
____________ (on land)
Oceanic Crust Forms
____________ (in oceans)
Can cause
_______________Activity
2 Plates come together and _____________
activity depends upon the types of
________________________________
more dense ________________ plate slides under less dense
__________________________ plate or another
____________________ plate which is called the
___________________.
Has 3 types of collisions
Continental –Continental (CC): forms
________________________: two continental plates
converge, both plates buckle and push up into mountain
ranges
-
-
-
Continental-Oceanic (CO): Has a
___________________________ and can cause
_____________________ activity
Oceanic-Oceanic (OO): Has a subduction zone and can
cause volcanic activity and can also form
________________________
Subduction is a way of recycling the oceanic crust.
Eventually the subducting slab sinks down into the mantle
to be recycled. It is for this reason that the oceanic crust is
much younger than the continental crust which is not
recycled.
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

Transform
Boundary
Where 2 Plates
______________
______________
_____________
crust is neither
created nor
destroyed
________________
occur frequently
along this type of
boundary
______________
______________
Ex: San Andreas
Fault