INTRO Unit 7: Tectonic Plates

Tectonic Plates Intro

6.10CD Unit 7

Tectonic Plates

• the Lithosphere is divided into Tectonic Plates

• the tectonic plates float and move on the Asthenosphere

Tectonic Plates

Tectonic plates are pieces of land that connect together on the Earth's outer shell. You can think of them like a giant round puzzle that cover Earth underneath the ground. These pieces bump together and move, even though it is only a couple of centimeters a year.

Multiple Choice

Tectonic Plates are pieces of that land that move.

• True

• False

Tectonic Plates

What are the major plates?

Major Tectonic Plates

• North American plate

• South American plate

• African plate

• Eurasian plate

• Indo-Australian plate

• Pacific plate

Multiple Choice

What tectonic plate do we live near?

• North American plate

• South American plate

• African plate

• Eurasian plate

• Indo-Australian

Tectonic Plates Move

along the boundaries

3 Tectonic Plates Movement

• Convergent (pushing together)

• Divergent (pushing away)

• Transform (slide past)

Multiple Choice

What movement am I?

• convergent (move together)

• divergent (move apart)

• transform (slide)

Multiple Choice

• Convergent(move together)

• Divergent(move apart)

• Transform(slide)

Multiple Choice

• convergent(move together)

• divergent(move apart)

• transform(slide)

Multiple Choice

What are the huge pieces of lithosphere that slowly move on the asthenosphere and consist of the crust and the rigid, uppermost part of the mantle?

• Tectonic Plates

• Continental Crust

• Oceanic Crust

• North American Plate

Multiple Choice

The less dense part of the Earth's crust that forms large land masses.

• Continental Crust

• Oceanic Crust

• North American Plate

• Eurasian Plate

Multiple Choice

The more dense part of Earth's crust that underlies the oceans.

• Continental Crust

• Oceanic Crust

• North American Plate

• Eurasian Plate

Match

Match the following

Divergent Boundary

Convergent Boundary

Transform Boundary

• Divergent Boundary

• Convergent Boundary

• Transform Boundary

Multiple Choice

A long chain of undersea mountains are called?

• faults

• islands

• rift valleys

• mid-ocean ridges

Multiple Choice

When a divergent boundary occurs under a continent what is formed?

• pillow lava

• volcano

• earthquake

• rift valley

Multiple Choice

When a continental plates collide what may be formed?

• islands

• mountains

• volcanoes

• rift valleys

Multiple Choice

What does Pangea "mean"?

• old land

• new land

• all land

• no land

Multiple Choice

When tectonic plates slide beside each other what type of boundary is it?

• convergent

• divergent

• transform fault

• slickensides

Match

Match the following:

• How the tectonic plates on Earth Move around.

• This drives the movement of tectonic plates

• Hardest type of boundary to identify

• What moves the continents apart

• New ocean floor is created here

plate tectonics

convection cells

transform fault

sea-floor spreading

mid-ocean ridges

• plate tectonics

• convection cells

• transform fault

• sea-floor spreading

• mid-ocean ridges

Match

Match the following

• Used as evidence for transform boundary

• When tectonic plates sink below others into the mantle

• Early supercontinent Wegner proposed

• One place where volcanoes may occur

• An area where earthquakes may begin/originate

offsetting

subduction

Pangea

divergent plate boundary

fault

• offsetting

• subduction

• Pangea

• divergent plate boundary

• fault

Dropdown

Which of the following WAS NOT used to support continental drift or Pangea? ​

Select answer

Drag and Drop

​

Placeholder

and ​

Placeholder

are the two types of tectonic plates.

Drag these tiles and drop them in the correct blank above

oceanic

continental

mantle

divergent

convergent

Multiple Choice

Identify this type of plate boundary:

• convergent

• divergent

• transform fault

• none of these

Multiple Choice

Identify the type of boundary:

• convergent

• divergent

• transform fault

• none of these

Multiple Choice

What is created when continental plates collide?

• subduction zone

• mountains

• volcanoes

• islands

Dropdown

Which two things are used as evidence of transform fault boundaries?

Select answer

and ​ ​

Select answer

Multiple Choice

This area is called the....

• Arc of Volcanoes

• Ring of Fire

• Horseshoe of Magma

Multiple Choice

In sea floor spreading, molten material rises from the mantle and erupts

• along the edge of the continents

• along the mid-ocean ridges

• in deep ocean trenches

• at the North and South pole

Multiple Choice

Pangaea was an ancient supercontinent made up of...

• America, Greenland, and Europe

• Antarctica, India, and America

• all of Earth’s continents

• South Africa, India, Australia, and South America

Multiple Choice

What is subduction?

• The theory that the Earth's continents have moved over geologic time.

• Developed Continental Drift Theory

• One big continent or land mass

• The process by which oceanic crust sinks beneath a deep trench and back into the mantle at a convergent plate boundary.

Multiple Choice

What is a convergent boundary?

• The theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle.

• One big continent or land mass.

• Th process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary.

• A plate boundary where two plates move toward each other.

Multiple Choice

What is a divergent boundary?

• one big continent or land mass

• a plate boundary where two plates move toward each other

• a plate boundary where two plates move away from each other

• the point on Earth's surface directly above an earthquake's focus

Multiple Choice

Which of the following land features are most closely associated with divergent plate boundaries?

I. Volcanic island

II. Mid-ocean ridge

III. Mountains

IV. Ocean basin

• IV and V

• II, III, and IV

• II and IV

• I, II, and III

Multiple Choice

Rift Valleys and mid-ocean ridges are associated with...

• divergent boundaries

• transform boundaries

• convergent boundaries

• plate boundaries

Multiple Choice

How do plates move at CONVERGENT boundaries?

• Collide (together)

• Move apart

• Slide past each other

Multiple Select

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

• Volcanoes/Mountains

• Faults

• Trenches

• Mid Ocean Ridge

• Rift Valley

Multiple Choice

How do plates move at DIVERGENT boundaries?

• Collide (together)

• Move apart

• Slide past each other

Multiple Choice

How do DIVERGENT boundaries affect the crust?

• They create crust

• They destroy crust

• They don't destroy or create

Multiple Select

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

• Volcanoes/Mountains

• Faults

• Trenches

• Mid Ocean Ridge

• Rift Valley

Multiple Choice

How do plates move at TRANSFORM boundaries?

• Collide (together)

• Move apart

• Slide past each other

Multiple Choice

How do TRANSFORM boundaries affect the crust?

• They create crust

• They destroy crust

• They don't destroy or create

Multiple Choice

What is the process in which two plates move toward each other but one sinks under the other?

• subduction
• convection
• divergence
• transformation

How do the plates ACTUALLY MOVE?

• Convection currents in the asthenosphere drive the movement of lithospheric plates

How does a convection cell occur?

• Hot magma in the asthenosphere begins to rise, similar to the way hot air rises.

• As it rises to the top of the asthenosphere, it cools and becomes more dense.

• This cooler, dense magma then sinks again. As it sinks, it gets warmer, until the process begins again

• This movement of magma is what drives the plates to move.

Multiple Choice

The idea that the continents were once part of a single landmass that broke apart and

moved is

• Continental Drift

• Tectonic Plates

• Transform

Multiple Choice

The region where two lithospheric plates meet

• Continental Drift

• Plate tectonics

• Plate Boundaries

Multiple Choice

Tectonic plates “float” on

• the lithosphere

• the mantle

• the ocean

• the asthenosphere

Multiple Choice

Which layer of the Earth consists of tectonic plates?

• asthenosphere

• mantle

• mesosphere

• lithosphere

Multiple Choice

The movement of the tectonic plates is caused by

• the rotation of the Earth

• convection currents in the Asthenosphere

• the gravity of the iron-nickel core

• the Moho discontinuity