Warm-up: Plate Tectonic Theory

What is the force that moves the continents?

• Conduction

• Convection

• Radiation

• Conveyor belts

Tags

NGSS.MS-PS2-5

What results when divergence occurs between two oceanic plates?

• a subduction zone
• seafloor spreading
• an ocean trench
• a volcanic island arc

Tags

NGSS.MS-ESS2-3

The theories of Continental Drift and Seafloor Spreading led to the modern theory of ________________.

• fault lines

• plate drift

• plate tectonics

• lithospheric shift

Tags

NGSS.MS-ESS2-3

The area around the pacific plate where boundaries form is called...

• death ring

• fire zone

• ring of fire

• zone of fire

Tags

NGSS.MS-ESS3-2

A subduction zone is formed...

• when one tectonic plate sinks below another
• at every type of convergent plate boundary
• at every type of divergent plate boundary
• at transform boundaries

Which of the following supports the theory of seafloor spreading? (choose all that apply)

• layered rock of silicon and oxygen

• Crustal Age (where new and old are found)

• Magnetic Reversal (recorded in ocean crust)

• Continuous Mountain Chains

Tags

NGSS.MS-ESS2-3

This diagram represents seafloor spreading. The + symbol represents normal magnetism, and the - symbol represents rock formed during a magnetic reversal. What is the age of the rock located at letter C?

• it is impossible to determine

• 2.6 million years (3.3 million - 0.7 million)

• 3.3 million years

• 0.7 million years

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

The process where oceanic crust slides under another plate and is melted is called ___________.

• seafloor spreading

• subduction

• continental drift

• recycling

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

What happens to temperature and pressure as you get to deeper layers within Earth?

• Temperature and Pressure increase

• Temperature increases, Pressure decreases

• Temperature decreases, Pressure increases

• Temperature and Pressure decreases

The idea that the continents were once together, and separated over a long period of time is

• Seafloor Spreading

• Transform Boundaries

• Continental Drift

• Mid Ocean Ridges

Tags

NGSS.MS-ESS2-3