1. Sections of Crust Moving Around!
Plate Boundaries
Sections of Crust Moving Around!
Class Zone Animations

2. Earth’s Internal Structure
Earth cut in half is called a __________________________
Cross Section
The outer layer is called the
_____________________ (crust)
Lithosphere
The layer below the crust is the
_____________ (upper mantle)
Asthenosphere
Below the asthenosphere is the
_____________ (melted rock)
Mantle
Below the mantle is the
_____________ (liquid metals)
Outer Core
The layer below the crust is the
_____________ (solid metals)
Inner Core

3. Earth 130 m.y.a. Over time the ____________ have ____________________
continents
separated
Continents are part of ________
that ______on the upper mantle
Crustal plates
“float”
Continental plates float _______
due to their ________________
higher
lower density
Crustal plates come together
and move apart at ______________ ________________
Plate Boundaries
Continental Drift Animation

4. Divergent Plate Boundaries
Places where oceanic crust splits apart are called ___________
Divergent Boundaries
Convection Cells in the ___________ split the crust apart
mantle
Volcanoes
__________________ form in the _____________________ where the crust splits apart
Rift Zone
A _________ mountain range formed here is called the ___________ ____________ __________
volcanic
MID
OCEAN
RIDGE
Mantle convection cell
Divergent Boundary Animation

5. Convergent Plate Boundaries
Places where an oceanic plate meets a
continental plate are called ______________________
Convergent Boundaries
Convection Cells in the ______ push the plates together
mantle
The _______________sinks below the ______________
Because it is more __________
This is called the _________ ____________
OCEANIC PLATE
Continental Plate
DENSE
Subduction Zone
____________ helps pull the oceanic plate down into the mantle!
GRAVITY
____________ and ___________ form on land near convergent-subduction boundaries.
Earthquakes
Volcanoes
Subduction Zone Animation

6. Convergent Plate Boundaries
Places where an oceanic plate meets another
oceanic plate are also called _________________________
Convergent Boundaries
Convection Cells in the ______ push the plates together
mantle
oceanic plate
One _______________sinks below the other ____________
This is called the _________ ____________
OCEANIC PLATE
Subduction Zone
____________ helps pull the oceanic plate down into the mantle!
GRAVITY
____________ and ___________ happen here. Some volcanoes grow large enough to form ____________
Earthquakes
Volcanoes
Islands

7. Convergent Plate Boundaries

8. Convergent Plate Boundaries
Places where two continental plates come together are also called ___________________
Convergent Boundaries
Convection Cells in the ______ push the plates together
mantle
The two plates are the same ___________ so neither one sinks! This is called the _________ _______
DENSITY
Collision Zone
Since there’s no subduction there are no ____________
Volcanoes formed
________________and ____________ form here! Some are the highest mountains in the world!
Earthquakes
Mountains
Collision Zone Animation

9. Transform Plate Boundaries
Places where two plates slide past each another
are called ___________________
Transform Boundaries
Convection Cells in the ______ push the plates past one another.
mantle
Subduction
There’s no ____________ so there’s no magma formed.
The only thing that happens here are ____________
Earthquakes
In the geologic future, Los Angeles will be a neighbor of San Francisco because they are on opposite sides of a transform plate boundary!
Transform Animation

10. Tell the type of boundary, what happens, and what forms here…
Ex: This is a ___ boundary where __ and __plates _____ to form ________________

11. Tell the type of boundary, what happens, and what forms here…

12. Tell the type of boundary, what happens, and what forms here…

13. Tell the type of boundary, what happens, and what forms here…