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Layers of the Earth

Hot Forces!

Sea-FloorSpreading

Pushing Boundaries

Local Celebrities

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Continental Drift

Name the four layers of the Earth from the outside to

the inside

What are the crust, the mantle, the

outer core, and the inner core?

These are the two metals that are

found in the core of the Earth

What are iron and nickel?

This is created by the liquid outer core of the Earth moving

around the solid inner core

What is the Earth’s magnetic

field?

This is the plastic, upper portion of

the mantle

What is the asthenosphere?

These two layers of the Earth combine

to form the lithosphere

What are the crust and the mantle?

This is the transfer of heat through

empty space

What is radiation?

This type of force builds up

mountains and land masses

What are constructive

forces?

________________ in the asthenosphere

cause the movement of lithospheric plates.

What are convection currents?

Rain, wind, ocean waves, sleet, and

hail are examples of these

What are destructive forces?

This is the heat source for

convection in the asthenosphere

What is heat from the core of the

Earth?

This “super-continent” began to

break apart 225 million years ago

What is Pangaea?

He is the father of the theory of Continental

Drift

(5 bonus points if you know his middle name)

Who is Alfred Lothar Wegener?

This mountain range follows the

coastlines of South America and

Africa

What is the mid-Atlantic ridge?

The shapes of these coastlines provide

evidence for Continental Drift

What are (S. America and Africa/Africa and N. America/

N. America and Europe)?

Two (of the four) pieces of evidence that Wegener used to prove his theory

What are folded mountain ranges,

coal beds, glacial deposits, and Glossopteris fossils?

The location of the newest/youngest rocks on the sea

floor

What is close to the mid-ocean ridge?

This ocean is shrinking

What is the Pacific Ocean?

The location where the oceanic

crust plunges under the

continental crust

What is the deep-ocean trench?

This is what it’s called when the

oceanic crust plunges under the continental crust

What is subduction?

These are two (of the three) ways that

scientists proved that sea-floor spreading

occurs

What are observing magnetic stripes, sea-floor drilling samples,

and recognizing newly-formed rocks at the mid-

ocean ridge

This is a break in the Earth’s crust where rocks have slipped past each

other

What is a fault?

What is a divergent boundary?

What is a convergent boundary?

What is a transform boundary?

Earthquakes occur at this type of plate

boundary

What is a transform boundary?

This is the name of a volcano in the Portland Area

What is (Mt. Tabor, Mt. Hood,

the West Hills, Mt. Saint Helens,

Mt. Rainier…)

This is the small lithospheric plate

off the coast of Oregon and Washington

What is the Juan de Fuca plate?

The coastal mountain range was created by these types of

forces

What are constructive

forces?

This mountain range was created by the

smashing together of the Juan de Fuca plate

and the North American plate

What is the cascade range?

Mount St. Helens’ most recent

eruption occurred in this year

What is 1980?(May 18th, to be

exact)

Make your wager

Draw a convection current in the asthenosphere.

Label:lithosphere,

mantle,core.

Lithosphere