Download PLATE TECTONICS - Cockeysville Middle

Objective: To differentiate among plate
boundaries in order to explain
how plate movement can shape
the surface of the Earth.
Earth Note: What are the different ways Earth’s plates
can interact?
Drill: 1. Get a new Lesson Sheet from
the SET.
2. Use your textbook to complete
Activity 1.
ES-4
on
e
Activity 1: What Is Plate Tectonics?
• The Earth’s surface is broken up into 15
lithospheric plates.
• These plates are composed of the top part
of the mantle and the crust.
• There are oceanic plates (more dense) and
continental plates (less dense).
• These plates “float” on the
asthenosphere, the plastic-like flowing
part of the mantle.
ES-4
on
e
PLATE TECTONICS:
the theory that states that pieces of
the Earth’s lithosphere are in slow
constant motion, driven by convection
currents in the mantle
ES-4
on
e
The Earth’s plates are constantly moving.
What are some ways they may interact
with each other?
a. come together (collide)
b. move apart (separate)
c. slide past each other
ES-4
on
e
Predict!! How can plate movement affect
the surface of the Earth? List landforms
that can be created though this
interaction.
mountains
oceans
ES-4
trenches
valleys
volcanoes
earthquakes
on
e
Use the provided resources to research
plate boundaries and plate movement.
1. Textbook: Pages 33 – 35
2. Resource Sheets
3. http://www.sepuplhs.org/middle/iaes/students/simulations
/sepup_plate_motion.html
4. https://www.youtube.com/watch?v=engPC9hbjqM
5. https://www.youtube.com/watch?v=JmC-vjQGSNM
6. L-drive (Segal – Earth Science)
7. Other
COMPLETE YOUR CHART
ES-4
on
e
Objective: To differentiate among plate
boundaries in order to explain
how plate movement can shape
the surface of the Earth.
Earth Note: What are the different ways Earth’s plates
can interact?
Drill: 1. Place your homework on your
desk, and open your log book.
2. Write 3 interesting things you
have learned so far in this unit.
ES-4
on
e
Videos
1. Plate Boundaries
2. Rap
3. Plate Boundaries 2
4. Plate Boundaries 3
ES-4
on
e
Transform Boundaries
• An area where two plates slip past each
other, moving in opposite directions
• Example – the San Andreas Fault in CA.
• Earth’s crust is neither created nor
destroyed.
• Earthquakes occur along these
boundaries.
ES-4
on
e
Divergent Boundaries
An area where two plates move apart
Occur on land and on the ocean floor
Example – the Great Rift Valley in East Asia.
New crust is created along the boundary in an
ocean, or a deep valley is created on land.
(Valley could fill with water…new ocean)
• In oceans, ridges form.
Constructive Boundary
•
•
•
•
ES-4
on
e
Convergent Boundaries
•
An area where two plates come together.
•
•
Example – the Himalaya Mountains in Asia
Collisions occur
a. cont. into cont. - (mountains)
b. cont. into ocean - (trench) subduction
c. ocean into ocean - (trench)
Destructive Boundary
ES-4
on
e
Subduction Zone
An area where an oceanic plate converges with
a continental plate.
Can happen where two oceanic plates collide
The Ring of Fire in the Pacific Ocean.
The dense oceanic crust sinks below the less
dense continental crust forming a deep trench.
•
•
•
•
Ocean crust is forced back into the mantle,
sometimes forcing molten rock upward
forming volcanoes.
•
ES-4
on
e
Homework: Analysis Ditto
ES-4
on
e