7.10B Plate Tectonics Mini Lesson

Plate Tectonics Notes

Convergent Collision

-2 continental plates collide
-Forms mountains

Continental

Continental

Convergent (Continental-Oceanic)

-1 continental and 1 oceanic plate collide
-Oceanic plate sinks
-Forms volcanoes & trench

Oceanic

Continental

Multiple Choice

What type of plates are colliding?

• 2 oceanic plates
• Oceanic and continental plate
• 2 continental plates

Multiple Choice

What type of plates are colliding

• 2 oceanic plates
• oceanic and continental plate
• 2 continental plates

Multiple Choice

What type of boundary is this?

• Divergent
• Convergent
• Transform Fault

Multiple Choice

Why did the oceanic plate subduct?

• Less dense
• More dense
• Heavier
• Thinner

Multiple Choice

Why did the continental plate get volcanoes?

• It is made of thicker continental crust
• It gets stuck and folds
• It has a subducted plate under it that melts
• It is more dense

Convergent (Oceanic-Oceanic)

-2 oceanic plates collide
-Older oceanic plate sinks
-Forms trench & volcanic Island Arc

Oceanic (older )

Oceanic (younger)

Divergent (continental-continental)

-2 continental plates move away from
each other
-Forms a rift valley

Divergent (oceanic-oceanic)

-2 oceanic plates move away from
each other
-Forms mid-ocean ridge

Transform

-2 plates slide past each other in opposite
directions
-Forms earthquakes and fault lines

Multiple Choice

What type of plates are colliding?

• 2 oceanic plates
• Oceanic and continental plate
• 2 continental plates

What causes Earth’s tectonic plates to move?

Convection currents in the

asthenosphere (mantle)

Multiple Choice

Which of the following causes Earth's tectonic plates to move?

• Energy from the Sun
• Magnetic Pole Reversal
• Convection currents in the mantle
• Faults in Mountain Ranges

Multiple Choice

A subduction zone is formed...

• when the oceanic crust sinks below the continental crust

• at every type of convergent plate boundary

• at every type of divergent plate boundary

• at transform boundaries

Multiple Choice

The process by which one plate is forced under another

• Radiation

• Convection

• Conduction

• Subduction

Multiple Choice

Plates move towards one another at ______________ boundaries.

• divergent
• convergent
• transform
• detergent

Multiple Choice

What geologic feature/event would you most likely to find at a convergent boundary between two pieces of continental crust?

• Volcano
• Mountain
• Rift
• Island Arc

Multiple Choice

Name the boundary

• convergent boundary
• divergent boundary
• transform boundary
• sergent boundary

Multiple Choice

The area where two or more plates meet is called a __________________.

• fault
• plate boundary
• plate edge
• ring of fire

Multiple Choice

The type of plate boundary where two plates come together is a .....

• Convergent Boundary
• Divergent Boundary
• Transform Boundary
• Plate Boundary

Multiple Choice

What type of plate boundary is this?

• Plate
• Divergent
• Convergent
• Transform

Multiple Choice

What are the two types of crust

• continental and oceanic
• ocean and upper
• lower and upper
• pizza and subway

Multiple Choice

subduction zones in the ocean can create which features?

• islands
• volcanoes
• earthquakes
• all of the above

Multiple Choice

When an oceanic plate and a continental plate collide, which one will subduct?

• oceanic
• continental
• neither

Multiple Choice

Which of the following statements is false?

• Oceanic crust is made of basalt
• Oceanic crust is thinner than continental crust
• Oceanic crust is less dense than continental crust
• Oceanic crust is younger than continental crust

Multiple Choice

Whenever a subduction zone is formed a ______ is formed.

• Mountain
• Island Arc
• Rift
• Volcano

Multiple Choice

What would you be most likely to find at a convergent boundary between a continental and oceanic plate?

• Mountains
• Volcanoes
• Mid-Ocean Ridge
• Rift

Multiple Choice

What would you be most likely to find at a convergent boundary between two pieces of continental crust?

• Volcano
• Mountain
• Rift
• Island Arc

Multiple Choice

Why is there a trench in the water?

• Because of the basalt 
• Because of the melting oceanic crust
• Because the oceanic plate is subducting making a low spot
• Because the oceanic plate is stuck and folds downward

Multiple Choice

Which of the following statements is false?

• Continental crust is less dense than oceanic crust
• Continental crust is younger than oceanic crust
• Continental crust is made of granite
• Continental crust is thicker than oceanic crust