Layers of the Earth
Continental Drift
Sea-floor Spreading
Plate Tectonics
Plate Boundaries
100
The layer of the earth that is solid and made up of iron and nickel.
What is the inner core?
100
The name of the large landmass that once contained all of the continents.
What is Pangaea?
100
The type of plate boundaries where sea-floor spreading occurs.
What is divergent?
100

What is plate tectonics?

The idea that the earth's crust is made up of plates that move

100

What is the idea that the earth is made up of plates?

Plate tectonics

200
The layer of the earth that is solid and made up of many kinds of rocks.
What is the crust?
200
The man who developed the theory of continental drift.
Who is Alfred Wegener?
200
The name of the area where molten material moves up through the ocean floor.
What is the mid-ocean ridge?
200

What are convection currents?

The force that moves the plates.

200

What is convergent? What can form at this boundary

The name for 2 plate boundaries that are moving toward each other. They can form mountains and volcanoes

300
The layer of the earth that is solid in the upper part, and liquid in the lower part, and is made up of iron, magnesium, and silicon compounds.
What is the mantle?
300
The reason the scientific community did not at first accept the Theory of Continental Drift.
What is he could not explain the force that made the continents move?
300
A detailed description of sea-floor spreading.
What is molten material comes up at the mid-ocean ridge, forming new rock, and pushing older rock out from the area.
300

What are the three different types of volcanoes?

Composite

Cinder Cone

Shield

300

What is a divergent boundary? What can form at this boundary?

The name for 2 plate boundaries that are moving away from each other. Oceans can form there

400
The layer of the earth that is liquid and made up of iron and nickel.
What is the outer core?
400

State 2 pieces of evidence that support the Theory of Continental Drift.

What are...matching fossils, plants, mountains, glaciers, pieces fit together

400
The theory that was more widely accepted after evidence was developed to support sea-floor spreading.
What is the Theory of Continental Drift?
400

If sea-floor spreading is taking place, the reason the earth isn't getting bigger and bigger.

What is subduction?

The earth's crust going under and getting destroyed

400

What is transform boundary? What can happen at the transform boundary?

The name of the boundary where 2 plates are moving past each other. Earthquakes can form here. 

500
The word that refers to the crust and upper mantle.
What is the lithosphere?
500

State 2 pieces of evidence that support the Theory of Continental Drift.

What are....

same fossils, plants, glacier and mountain shape on different continents. Coal found in arctic and tropics

500

What are the three plate boundaries? Describe the way that they move

What are..

Convergent - collide together

Divergent - divide away from each other

Transform - slide past each other

500

3 pieces of evidence that support the idea of plate tectonics.

 satellite images that record movement, plotting earthquakes and volcanoes, and landforms that are the result of plate movement

500

Why do volcanoes, mountains, oceans, and earthquakes happen at plate boundaries?


This is where the plates are moving the most, either towards, away, or past each other. These natural disasters occur because the plates are moving. 

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