Earth's Layers
Plate Tectonics
Convection Currents
Plate Boundaries
Random
100
Which layers of the Earth are completely solid with no fluidity?
Inner core and crust
100
What is plate tectonics?
Theory that earth's outer core shell is divided into several plates that glide over the mantle.
100
How do warm particles move in convection currents?
They want to rise.
100
What are the three plate tectonic boundaries?
divergent, convergent, transform plate boundaries,
100
What is the difference between continental and oceanic crust
continental - thinner, less dense granite
oceanic - thicker, more dense basalt
200
What is the earth's 5 layers (start with the surface and work your way in)?
crust, upper mantle, lower mantle, outer core, inner core
200
What theory did Alfred Wegner have that eventually led to the Plate Tectonics theory? 
Theory of Continental Drift
200
How to cooler particles move in convection currents?
They want to sink down.
200
How to plates move in a convergent boundary?
The plates move toward each other.
200
How are the layers in Earth arranged (why are they in this particular order)?
They are arranged by density (densest at bottom/center and least dense on top).
300
Where is the asthenosphere located?
Upper mantle (directly under the Lithosphere)
300
What 3 pieces of evidence did Wegener have for his Theory of Continental Drift?
Fossils, climate, and land forms
300
What layer(s) in Earth is solid, but has some fluidity?
Mantle (Upper and Lower)
300
What is the most common event that can occur at a Transform boundary?
Earthquake
300
Why did people not believe Wegener's Theory of Continental Drift?
He did not know how the land had moved over time.
400
Which 2 layers are made of metal?
inner core and outer core
400
How fast do Earth's tectonic plates move?
on average, a couple of cm per year.
400
What do we call a solid that has some properties of a liquid (like the mantle or oobleck)?
Non-newtonian Fluid
400
What type of plate boundary is this AND what could be created in the new space created?
Divergent AND new crust or volcano
400
What is the difference between the outer core and inner core?
Outer core is liquid metal and inner core is solid metal.
500
How do the Lithosphere and Asthenosphere interact or where are they located relative to one another?
The rigid Lithosphere floats or moves on the slowly flowing asthenosphere which creates the movement of tectonic plates.
500
How are tectonic plates able to move?
Convection currents
500
Why are convection currents important to the Theory of Plate Tectonics?
The convection currents in the mantle is responsible for the movement of the tectonic plates.
500
What type of boundary is this AND what is it called when one plate sinks under another?
Convergent AND subduction
500
Which is hotter: the inner core or the mantle?
Inner core