Continental Drift, Seafloor Spreading, and Plate Tectonics

___________ is the process by which

new oceanic lithosphere (sea floor) forms as magma rises to Earth’s surface and solidifies at a mid-ocean ridge.

• Continental drift

• Sea-floor spreading

• Plate tectonics

• Mid-ocean range

A Plate Boundary where two plates move toward each other is called

• Convergent Boundary
• Divergent Boundary
• Transform Boundary
• Subduction

A plate boundary where two plates move away from each other is called

• Divergent Boundary
• Convergent Boundary
• Transform Boundary
• Subduction

Boundary between two plates that are sliding past each other

• transform

• divergent

• convergent

• strike-slip

Tags

NGSS.MS-ESS2-3

The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary.

• stressing

• seafloor spreading

• subduction

• shearing

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

What boundary is being showed here? An example would be the Himalayan Mountains.

• Divergent (Continental-Continental)

• Transform (Continental-Continental)

• Convergent (Continental-Oceanic)

• Convergent (Continental-Continental)

Where do most earthquakes and volcanoes occur?

• Near plate boundaries around the Ring of Fire.

• Away from plate boundaries around the Ring of Fire.

• On plate boundaries around the Ring of Fire.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

The cycle of heating, rising, cooling, and sinking is a _____ current and geologists think this is how the plates are moving.

• Ocean

• Convection

• Wind

• Electric

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-1

Sections of Earth's crust and part of the upper mantle are called _____.

• Lithosphere

• Asthenosphere

Continental plates move on the plasticlike layer of Earth's surface called the _____.

• Lithosphere

• Asthenosphere