DIY: Plate Tectonics

What are the two types of crust?

• Convergent and Divergent

• Continental and Oceanic

• Trench and Island Arc

How is the subduction zone formed?

• When two plates slide each past each other

• When two plates move toward each other

• When one tectonic plate sinks below another

What happens at the boundary where a continental plate and an oceanic plate collide?

• The oceanic plate is forced down under the continental plate

• The continental plate slips under the oceanic plate

• Mountains develop on edge of the oceanic plate

Why does the oceanic crust sink beneath the continental crust at a subduction boundary?

• The oceanic crust has a greater density

• The oceanic crust has a lighter density

• The oceanic crust is hotter

What happens when two continental plates, of the same density, collide?

• Neither the plates will be subducted

• Both two plates will go downward

• One plate will go under and subducts

What will happen to the leading edge of the subducted denser plate?

• It will later reach the mantle, causing it to melt and turn into magma

• It will later reach the mantle and evaporate

• Volcanic arc will form

What type of plate boundary is this?

• divergent

• convergent

• transform

Name the boundary

• convergent boundary

• divergent boundary

• transform boundary

In which type of boundary do the plates move away from each other?

• convergent
• normal
• divergent
• transform

At which type of plate boundary does seafloor spreading occur?

• Tranform
• Convergent
• Divergent
• Subductive Zone