Plate Boundaries 1
In this type of boundary, plates are moving towards each other.
convergent boundary
In this type of plate boundary, plates are moving apart
Divergent boundaries
The thickest of the four layers
Mantle
In this type of boundary, plates slide against each other
transform boundaries
Which type of crust is denser (heavier). Oceanic or Continental?
What boundary caused the mid-atlantic ridge?
Divergent
What is likely to occur when two continental boundaries collide?
Mountains or Earthquakes.
What layer of the Earth are Tectonic plates found?
Crust/Lithosphere
New oceanic crust is created at what type of boundary?
Divergent Boundary
Why does oceanic crust subduct beneath continental crust?
What is- It is more dense
What boundary causes earthquakes? Also in your answer explain how the plates are moving?
Transform boundaries -plates rubbing against each other causing friction - creating a build up of pressure.
Explain convection currents in the earths mantle?
Hot Magma rising, cool magma sinking
What was the supercontinent originally called?
Pangea
What oozes out of the earth when plates diverge?
What is magma
What causes volcanoes to form?
subduction at convergent boundaries
What is the largest fault line in the USA?
San Andreas Fault Line
At which plate boundary does subduction occur?
Explain how mid ocean ridges are formed.
Two plates move apart, magma rises to the surface. Then magma fills the gap between the plates. When the magma cools, it forms new crust.
When one plate slides under another and melts into the mantle
Subduction
Which type of crust is thicker?
Continental
Convergent
What is the difference between magma and lava.
Magma - underneath the earth. Lava - outside.
ONE (1) reason why oceanic crust will typically subduct beneath continental crust at a convergent boundary?
Oceanic crust is denser (heavier) than continental crust
What do continental to continental plate boundaries create?
mountains
What landform is created on land at divergent boundaries?
Rift valleys