Plate Tectonics Lesson 4: Plate Boundaries

Boundary between two colliding plates, often associated with mountain building, ocean trenches and volcanic islands

• plate boundary

• magma

• divergent boundary

• convergent boundary

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

the region where an oceanic plate sinks down into the asthenosphere at a convergent boundary, usually between continental and oceanic plates

• subduction zone

• lava zone

• nitrogen zone

• continental zone

Tags

NGSS.MS-ESS2-3

where two plates are moving apart, magma comes up to create new crust

• lithosphere

• trench

• ridge

• magma

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

A long narrow deep depression in the ocean bed

• ridge

• fault

• trench

• rift

Circular currents in the mantle caused by the magma being heated by the core off the Earth.

• convection currents

• lava

• magma

• hot air

Tags

NGSS.MS-ESS2-1

Three Types of Plate Boundaries

• Transform (slide past)

• Convergent (collision)

• Divergent (pull apart)

• All the above

Tags

NGSS.MS-ESS2-3

Transform Boundary

• Where two plates slide past each other.

• when two plates collide

• when two plates are pulling apart

• None of the above

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

Examples of convergent boundaries where two continental plates collide producing a large mountain range.

• San Andreas Fault (USA)

• Japan (Asia); Aleutian Islands (Alaska, USA)

• Andes Mountains (S. America)

• Himalaya Mtns (Asia); Appalachian Mtns (USA)

Tags

NGSS.MS-ESS2-2

Example of divergent boundary between two continental plates.

• Mid-Atlantic Ridge (Atlantic Ocean)

• Andes Mountains (S. America)

• East Africa Rift Valley

• None of the above

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

boundary zones are characterized by deep-ocean trenches, shallow to deep earthquakes, and mountain ranges containing active volcanoes.

• Convergent

• Divergent

• Transform

• All the above

Tags

NGSS.MS-ESS3-2