8.9b

The map shows the locations of four active volcanoes in the Caribbean Sea. What do these volcanoes indicate about plate tectonics in the region?

• The volcanoes form an island arc, indicating a converging plate boundary

• The volcanoes form a line, indicating a diverging plate boundary.

• Two plates are moving past each other, causing faulting and magma formation.

• Two plates are moving apart, creating new seafloor

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

The diagram shows a model of the movement of two tectonic plates. When the plates collide, on plate often moves below the other plate. The rising magma that can result from this type of plate movement may produce-

• fossil layers

• volcanic islands

• deep-sea sediment

• seafloor spreading

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

The model below shows two continental plates. The folded mountains in this model form at which type of plate boundary?

• Transform boundary

• Divergent boundary

• Subduction boundary

• Convergent boundary

Tags

NGSS.MS-ESS2-2

Scientists recently discovered that rocks collected from the Franklin Mountains in West Tests and rocks collected from mountains in eastern Antarctica were exactly the same age. Further research showed that the rocks were chemically and geologically the same and came from the same magma source. This discovery provides evidence of--

• coastal erosion

• plate tectonics

• ocean currents

• glacial melting

Tags

NGSS.MS-ESS2-3

The San Andreas fault is a transform fault. The map below shows a student's approximation of where the fault line crosses through the United States. Students were asked to make maps predicting which way land would most likely move over thousands of years.

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Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

The image shows a plate boundary. Arrows have been added to indicate the movement of the plates.What plate boundary feature is also shown?

• A ridge formed by an inactive convergent boundary

• A valley forming at an active divergent boundary

• A fault forming at an active transform boundary

• A volcano formed by an active transform boundary

Tags

NGSS.MS-ESS2-3

Name this plate boundary.

• divergent

• convergent

• transform

• allegiant 

Tags

NGSS.MS-ESS2-3

What forms when two oceanic plates diverge?

• moutains

• rift valley

• mid-ocean ridge

• deep-ocean trench

What is formed when two continental plates collide?

• volcano

• mountain

• trench

• rift valley

What are the deepest places on Earth formed by pushing oceanic crust under continental crust?

• mid-ocean ridges

• rift valleys

• trenches

• mountain ranges

Tags

NGSS.MS-ESS2-3