Plate Boundaries

Y9 Plate Boundaries

To check our understanding of plate boundaries

Earth Sciences: Plate Boundaries

In the theory of plate tectonics, the earth's crust is broken into plates that move around relative to each other. As a result of this movement, three types of plate boundaries are formed: divergent, convergent, and transform boundaries.

Divergent Boundaries

Divergent boundaries are boundaries where plates pull away from each other, forming mild earthquakes and volcanoes as magma comes to the surface.

The creation of oceanic crust, seafloor spreading, is the process that forms new land/crust on Earth.

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The rock closest to the opening of the boundary is the youngest. The rock ages as you move further away from the fissure (opening).​

Multiple Choice

How do plates move at DIVERGENT boundaries?

• Collide (together)

• Move apart

• Slide past each other

Multiple Select

Choose all the features that can be formed at DIVERGENT boundaries.

• Volcanoes/Mountains

• Trenches

• Mid Ocean Ridge

• Rift Valley

Multiple Choice

At which boundary is new crust formed

• Transform

• Divergent

• Convergent

Multiple Choice

How do DIVERGENT boundaries affect the crust?

• They create crust

• They destroy crust

• They don't destroy or create

Convergent Boundaries

Convergent boundaries are boundaries where two plates are pushing into each other. They are formed when two plates collide, either crumpling up and forming mountains or pushing one of the plates under the other and back into the mantle to melt.

​Formed when convergent continental boundaries collide and deform the crust, causing it to buckle, fold, and create new hills and mountains

Mountain Building

Continental - Continental​

At convergent boundaries, continental crust is created and oceanic crust is destroyed as it subducts, melts, and becomes magma.

​

Convergent plate movement also creates mountains, earthquakes and often forms chains of volcanoes.

Subject | Subject

Multiple Choice

How will you describe the movement of the image here?

• They are colliding or moving toward to each other

• They are moving away from each other

• They are sliding past each other

• There is no movement at all

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

In what type of boundary are the plates move toward each other?

• Convergent boundary

• Divergent boundary

• Transform Fault boundary

Multiple Choice

What kind of plate boundary is shown here?

• divergent

• convergent

• transform

• strike slip

Transform Boundaries

The third type is transform boundaries, or boundaries where plates slide past each other, forming strong earthquakes. All of this crashing, banging, and erupting are one reason why the surface of the earth has such a variety of landforms and features.

Transform Boundaries

Two plates sliding past each other forms a transform plate boundary. Natural or human-made structures that cross a transform boundary are offset—split into pieces and carried in opposite directions. Earthquakes are common along these faults.

​A well-known transform plate boundary is the San Andreas Fault, which is responsible for many of California’s earthquakes.

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San Andreas Fault

Multiple Choice

What kind of plate boundary is shown here?

• divergent

• convergent

• transform

• submergent

Multiple Choice

What geologic feature/event you be most likely to find at a transform boundary?

• Earthquakes

• Volcanoes

• Mountains

• Rift Valleys

Multiple Choice

Sliding past:

• Divergent

• Convergent

• Transform

• Actually, all of them

At divergent boundaries, NEW crust is created by magma coming up!

At convergent boundaries, crust is DESTROYED or recycled by being crushed or pushed underneath.

At transform boundaries, nothing happens to crust.

​

​What happens to the crust?

Multiple Choice

Creates new ocean floor:

• Divergent

• Convergent

• Transform

Multiple Choice

Destroys or recycles crust:

• convergent

• divergent

• transform

Multiple Choice

Neither creates or destroys crust

• convergent

• divergent

• transform

Divergent boundaries-plates moves AWAY from each other

Convergent boundaries- plates moving towards/into each other

Transform-plates sliding past each other

​

​lets review!

Multiple Choice

What kind of plate boundary is shown here?

• divergent

• convergent

• transform

• subducting

Multiple Choice

What kind of plate boundary is shown here?

• divergent

• convergent

• transform

• strike slip

Multiple Choice

Moves together:

• Divergent

• Convergent

• Transform

Multiple Choice

Sliding past:

• Divergent

• Convergent

• Transform

• Actually, all of them

Multiple Choice

Identify the plate boundary shown in the image.

• Divergent

• Convergent

• Transform

• Strike Slip

Multiple Choice

Identify the plate boundary shown in the image.

• Divergent

• Convergent

• Transform

• Submergent

Multiple Choice

New oceanic crust (sea floor) is created at this boundary.

• Convergent Oceanic

• Divergent Oceanic

• Divergent Continental

• Transform

Multiple Choice

Identify the divergent plate boundary.

Multiple Choice

Which plate boundary is this?

• Convergent Continental to Continental

• Convergent Continental to Oceanic

• Convergent Oceanic to Oceanic

• Divergent

• Transform

Multiple Choice

Which plate boundary is this?

• Convergent

• Divergent

• Transform

Multiple Choice

Which plate boundary is this?

• Convergent

• Divergent

• Slip

• Transform

Destroys/recyles crust

can create mountains

IF subduction zone, can create land based volcanos

Convergent

Creates new crust

sea floor spreading

ridges and trenches in ocean

can create small earthquakes and some sea volcanos

Divergent

Features

Transform-"creates" nothing, but MAJOR source of earthquakes!!

Multiple Choice

A boundary that doesn't create or destroy crust is called a:

• Transform Boundary

• Convergent Boundary

• Divergent Boundary

• Rift Valley

Multiple Choice

In what type of boundary is the only feature created going to be Mountains?

• Oceanic to Oceanic Convergence

• Oceanic to Continental Convergence

• Rift Valleys

• Continental to Continental Convergence

Multiple Choice

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

• Mid-Ocean Ridge

• Island Arc

• Flat land

Multiple Choice

A mid-ocean RIDGE is located at the boundary of two tectonic plates. Which diagram correctly models the relative plate motion on each side of a mid ocean ridge?

Multiple Choice

A plate boundary at which two plate move parallel to each other in opposite directions

• convergent plate boundary

• divergent plate boundary

• transform plate boundary

• subduction

Multiple Choice

one tectonic plate moves under another

• divergent plate boundary

• transform plate boundary

• subduction

Multiple Choice

Mountains form when a plates MOVE AWAY.

• True

• False

Multiple Choice

What is the term for one plate going UNDER? 

• plate boundary

• submersion

• accretion

• subduction

Multiple Choice

A divergent boundary in the ocean creates what feature?

• Mid Ocean Ridge

• Rift Valley

• Deep Ocean Trench

• Subduction Zone

Multiple Choice

What geological forces might be responsible for this range of mountains?

• diverging tectonic plates

• erosion of the land by the ocean

• converging tectonic plates

• deposition of sediments by the ocean

Lets see if we got it!

Multiple Choice

What type of plate boundary is this?

• Transform

• Convergent

• Divergent

• Plate

Multiple Choice

The diagram shows a landform on Earth. How did the movement of Earth’s plates form the landform?

• Two oceanic plates slid past each other.

• Two continental plates collided.

• One continental plate slid past an oceanic plate.

• One continental plate subducted beneath an oceanic plate.

Multiple Choice

What are the two types of crust

• continental and oceanic

• ocean and upper

• lower and upper

• pizza and subway

Multiple Choice

Creates new ocean floor:

• Divergent

• Convergent

• Transform

Multiple Choice

Moves away from:

• Divergent

• Convergent

• Transform

Multiple Choice

Moves together:

• Divergent

• Convergent

• Transform

Multiple Choice

Sliding past:

• Divergent

• Convergent

• Transform

• Actually, all of them

Multiple Choice

Has rift valleys:

• Divergent

• Convergent

• Transform

• Actually, all of them

Multiple Choice

Creates volcanoes on land:

• Divergent

• Convergent/Subduction

• Transform

• Actually, all of them

Multiple Choice

What kind of plate boundary is shown here?

• divergent

• convergent

• transform

Multiple Choice

New crust forms along a(n)

• divergent boundary

• convergent boundary

• transform boundary

Multiple Choice

Crust can be destroyed along a(n)

• divergent boundary

• convergent boundary

• transform boundary

Multiple Choice

Identify the type of tectonic boundary: Yesterday, there was a 5.4 Earthquake in San Francisco, U.S.A.

• divergent boundary

• convergent boundary

• transform boundary

Multiple Choice

New oceanic crust (sea floor) is created at this boundary.

• Divergent Oceanic

• Divergent Continental

• Convergent Oceanic

• Transform

Multiple Choice

Oceanic crust (sea floor) is destroyed at this boundary.

• Convergent Oceanic

• Divergent Oceanic

• Convergent Continental-Continental

• Divergent Continental

Multiple Choice

Which plate boundary is this?

• Convergent Continental to Continental

• Convergent Continental to Oceanic

• Convergent Oceanic to Oceanic

• Divergent

• Transform

Multiple Choice

Which plate boundary is this?

• Convergent Continental to Continental

• Convergent Continental to Oceanic

• Convergent Oceanic to Oceanic

• Divergent

• Transform

Multiple Choice

Which plate boundary is this?

• Convergent Continental to Continental

• Convergent Continental to Oceanic

• Convergent Oceanic to Oceanic

• Divergent

• Transform

Multiple Choice

Which plate boundary is this?

• Convergent Continental to Continental

• Convergent Continental to Oceanic

• Convergent Oceanic to Oceanic

• Divergent

• Transform

Multiple Choice

Two plates come together or collide at what boundary?

• Convergent

• Divergent

• Transform

Multiple Choice

When two continental plates converge (collide) what type of crustal feature is formed?

• Mid Ocean Ridge

• Subduction Zone

• Rift Valley

• Folded Mountains

Multiple Choice

What is the only event associated with plate boundaries, however LARGEST at transform boundaries

• Volcanoes

• Earthquakes

• Subduction

• Deep Trenches

Multiple Choice

When plates SLIDE PAST each other to make earthquakes?

• Convergent

• Divergent

• Hot Spot

• Transform

Multiple Choice

When two plates COLLIDE into each other. 

• Convergent

• Divergent

• Hot Spot

• Transform

Multiple Choice

When plates DIVIDE (separate) form each other.

• Convergent

• Divergent

• Hot Spot

• Transfomr

Multiple Choice

The HIMALAYAN MOUNTAINS are an example of what?

• Convergent

• Divergent

• Hot Spot

• Transform

Multiple Choice

The SAN ANDREAS FAULT is an example of what?

• Convergent

• Divergent

• Hot Spot

• Transform

Multiple Choice

What type of plate is this?

• Convergent

• Divergent

• Transform

Multiple Choice

What type of plate is this?

• Convergent

• Divergent

• Transform

Multiple Choice

What type of plate is this?

• Convergent

• Divergent

• Transform

Multiple Choice

What kind of plate boundary is shown here?

• divergent

• convergent

• transform

• subducting

Multiple Choice

What kind of plate boundary is shown here?

• divergent

• convergent

• transform

• strike slip

Multiple Choice

Oceanic crust (sea floor) is destroyed at this boundary.

• Convergent Oceanic

• Divergent Oceanic

• Convergent Continental-Continental

• Divergent Continental

Multiple Choice

Circular currents in the mantle caused by the magma being heated by the core off the Earth.

• convection currents

• lava

• magma

• hot air