Unit 9 Plate Tectonics 2023

New crust forms at ______

• mid ocean ridge
• folded mountains
• trench
• rift valley

How do we know that continental drift and plate tectonics are really happening?

• New crust forms at mid-ocean ridges
• Oceanic crust is destroyed at mid-ocean ridges
• Plates slide around on the asthenosphere
• New crust forms at trenches

Tags

NGSS.MS-ESS2-3

Where do folded (non-volcanic) mountains form?

• C-C convergent boundaries
• O-C convergent boundaries
• O-O divergent boundaries
• O-O convergent boundaries

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

The Hawaiian Islands formed over a ___________.

• hot spot in the middle of a plate
• mid ocean ridge
• plate boundary
• trench

Why does magma flow upward through rocks?

• it has low density
• it has high density
• it is very cold
• it doesn't flow upward

______________ is the process by which thin, dense oceanic crust sinks into the asthenospere when it meets continental crust.

• subduction
• convection current
• continental drift
• seafloor spreading

Tags

NGSS.MS-ESS2-3

What causes tectonic plates to move around?

• convection currents in the asthenosphere
• magnetic reversals
• subduction
• high winds

Tags

NGSS.MS-ESS2-3

______________ is the theory that large pieces of the lithosphere are in constant, slow motion.

• plate tectonics
• seafloor spreading
• subduction
• magnetic reversals

Tags

NGSS.MS-ESS2-3

Where would you expect to experience the most earthquakes? The San Andreas Fault is an example.

• transform boundary
• convergent boundary
• divergent boundary
• subduction zone

Tags

NGSS.MS-ESS3-2

Which landform is created where 2 continental plates diverge?

• rift valley
• mid ocean ridge
• trench
• folded mountains

Tags

NGSS.MS-ESS2-3