Earth
Random
Plates
Boundaries
100
Scientists say that Earth's surface is broken up into many pieces (plates). As seen from below, which image best represents Earth's surface?
C
100
What is the difference between a convergent and divergent plate boundary?
In a convergent plate boundary, the plates move toward one another. In a divergent plate boundary, the plates move away from one another.
100
What is a subduction zone?
When one plate moves underneath another plate.
100
Where do most earthquakes occur?
plate boundaries
200
Describe how plates on the surface of Earth move.
Plates are moving slowly and constantly.
200
What happens to the material of a plate that goes under another plate?
The plate material moves into the mantle.
200
In which regions are earthquakes most likely to occur?
A, C, D
200
What is a transform plate boundary?
Plates sliding past one another.
300
Describe what happens between two plates as they separate.
Material from Earth's interior fills in the gap between the two plates.
300
What features were formed between South America and Africa (the boxed area in the image below) as the continents separated?
An ocean and a mid ocean ridge.
300
Which regions show one plate moving toward another plate?
A & D
300
What is an example of a transform plate boundary?
San Andreas Fault
400
Two plates move toward each other. Plate A is more dense (heavier for its size) than Plate B. What will happen?
Plate A will go beneath plate B.
400
How do you know that an ocean and a mid-ocean ridge was formed in the boxed area, when the two continents seperated?
The continents of South America and Africa separated because of a divergent boundary. Plates move away from each other at divergent boundaries. Features found at divergent boundaries are oceans and mid-ocean ridges.
400
Which regions show one plate moving away from another plate?
C
400
What do the red dots in this image represent?
Earthquakes.
500
What caused Pangea to break apart?
Material movement in Earth's interior.
500
The Nazca plate borders the South American plate, where a deep trench, high mountain ranges, and volcanoes are found. Given this information, which of the following pictures shows how the Nazca plate moves?
A
500
Why are earthquakes more likely to occur in A, C, and D?
Earthquakes are most likely to occur where plate boundaries are located.The plate boundaries are located in the sections labeled A, C, and D.
500
What is being outlined in this image by the earthquakes? (Where do most earthquakes occur?)
plate boundaries.