Plate Tectonics and Seafloor Spreading

What is a tectonic plate?

• a block of mantle

• a block of lithosphere

• a portion of continental matter

• segments of oceanic crust

Evidence for continental drift includes how similar the coast line is of these two continents:

• North America and South America

• South America and Africa

• Africa and North America

• Australia and Antarctica

Tags

NGSS.MS-ESS2-3

The lithosphere consists of

• the crust and upper most mantle

• the crust and lower mantle

• the upper most mantle and the core

• the inner mantle and the core

The lithosphere can be _____________________ at plate boundaries.

• created

• destroyed

• nothing can happen

Tags

NGSS.MS-ESS2-2

In a convection current, heat tends to:

• fall

• sink

• float

• rise

Tags

NGSS.MS-ESS2-6

This plate is

• convergent

• divergent

• transform

Tags

NGSS.MS-ESS2-3

This plate is

• convergent

• divergent

• transform

Tags

NGSS.MS-ESS2-3

This plate is

• convergent

• divergent

• transform

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

This plate is

• convergent

• divergent

• transform

Tags

NGSS.MS-ESS2-3

Seafloor spreading occurs when two plates

• are colliding into each other

• when one plate subducts beneath another less dense one

• slip past each other creating earthquakes

• are moving away from each other creating ridges

Tags

NGSS.MS-ESS2-3