Plate Margin 1
These plates move toward each other
What are convert plates boundaries
At this plate boundary, two plates pull apart from each other.
What is a divergent plate boundary?
This is a boundary where plates slide pass each other.
What are transform plate boundaries?
The three types of plate margins
Molten material created from plate destruction.
What is magma?
The African rift valley.
What is an example of divergent plate boundary on land?
Also called passive or conservative plate margins.
What are transform plate boundaries?
An example of a Rift Valley in Jamaica
Porus
When they meet fold mountains are created.
What are continental plates?
This is called sea floor spreading.
What is name given to divergent plate boundary under water?
An example of a transform plate boundary.
What is San Adreas fault line?
He came up with the theory of Plate tectonics
Alfred Wegener
These are very dense slabs or plates that often subduct/ sink?
What are Oceanic plates?
The upwelling magma cools and forms new soil.
Why are divergent plate boundaries constructive?
The plate margin found north of the Caribbean plate.
Transform plate margin
This is made up of the crust and upper mantle
What are Plates?
This feature forms at the section where continental and oceanic plates meet.
What are ocean trenches?
Tectonic activities at convergent plate boundaries.
What are volcanoes and earthquakes?
The main effects of transform plate boundaries.
What are earthquakes?
Convectional currents explanation
The core heats the magma at the lower mantle, which becomes less dense and rises towards the upper mantle. It then cools and becomes dense and sinks towards the lower mantle where the process takes place again. These currents develop because of differences in temperature that exist throughout the mantle.