Download Tectonics Boundaries Student Sheet 1 Divergent

Tectonics Boundaries Student Sheet 1
Divergent
1.
Name:
What type of force is causing the movement at the boundary investigated
between Africa and South America (i.e. the Mid Atlantic Ridge)?
_______________________________________________________________
2.
What is the distance moved in the 30 million years of time that is examined?
_______________________________________________________________
3.
What type of boundary is the one investigated?
_______________________________________________________________
4.
What is the average distance that the plates move in a year at this boundary?
____________________
5.
As the plates move, what happens to the gap between them?
_______________________________________________________________
6.
Where does the molten rock from between the plates end up?
_______________________________________________________________
7.
Describe the height distribution of the oceanic crust in relation to the plate
boundary.
_______________________________________________________________
8.
What happens to the density of the molten rock that is pushing up between the
plates as it cools?
_______________________________________________________________
9.
Describe the key events that are occurring as the plates move apart.
_______________________________________________________________
10.
Describe the age of the rocks each side of the plate boundary.
_______________________________________________________________
11.
On land, divergent plate boundaries produce large cracks in the ground that are
volcanic vents. What are these vents called?
Tectonics Boundaries Student Sheet 1.doc
1
_________________________
12.
Boundaries of this type are rare on land (i.e. above the ocean floor). Where is
the most famous example of this type? (i.e. name the location/country).
_________________________
Tectonics Boundaries Student Sheet 1.doc
2