Show:
Earth's Interior
Continental Drift
Sea Floor Spreading
Plate Tectonics
Potpourri
100
What are the 4 main layers of the Earth?
Crust, mantle, outer core, and inner core
100
He proposed the theory of continental drift
Who is Alfred Wegener
100
This is what erupts through the valley of the mid-ocean ridge
What is molten material?
100
Earth's lithosphere is broken into separate sections called
What are plates?
100
Forces that create landforms
What is constructive forces?
200
What is the difference between the inner and outer core?
The inner core is molten material and the outer core is solid.
200
Scientists who study the forces that make and shape the planet Earth are called
What are geologists?
200
This is the process by which oceanic crust sinks beneath continental crust causing trenches
What is subduction?
200
This type of boundary is where two plates slip past each other
What is transform boundary?
200
Forces that break down landforms
What are destructive forces?
300
The continental crust is made of this type of rock
What is granite?
300
The 4 types of evidence used to prove Wegener's theory of continental drift
Fit of the continents, landforms, climate, and fossils
300
This is the process that continually adds new material to the ocean floor
What is sea floor spreading?
300
This type of boundary is a place where two plates collide
What is convergent boundary?
300
List the 7 continents
North America, South America, Asia, Europe, Antartica, Australia, and Africa
400
The oceanic crust is made of this type of rock
What is basalt?
400
The reason scientists rejected Wegener's theory was because he could not do the following...
Wegener could not explain what causes the push or pull of the continents
400
The 3 types of evidence that support the theory of sea floor spreading
What are eruptions of molten material, magnetic stripes in the rock of the ocean floor (pattern of rocks), and the age of rocks from drilling samples.
400
This type of boundary is a place where two plates separate from each other
What is divergent boundary?
400
The theory that Earth's crust and upper mantle are broken into sections is called....
What is plate tectonics?
500
Explain the differences in density and thickness for oceanic and continental crust.
Oceanic crust is thin and dense while continental crust is thick and less dense
500
Provide the name of one animal and plant fossil that helped prove continental drift
Mesosaurus or Lystrosaurus and Glossopteris
500
Lists in detail the process of sea-floor spreading.
What is 1st the molten material rises from the mantle and erupts through a mid-ocean ridge, 2nd the molten material then spreads out pushing older rock to both sides of the ridge, 3rd new material (rock) is added to the ocean floor.
500
1. ___________ are formed when two continental plates collide 2. ___________ is caused when two plates separate 3. ___________ are caused when two plates slide past one another 4. ___________ are created when oceanic crust sinks beneath continental crust
1. Mountains 2. Sea- floor spreading 3. Earthquakes 4. Trenches
500
Another name for the supercontinent
What is Pangaea?