Topic 4 - Plate Tectonics Review

Earth's crust is divided into two types

• land crust and sea crust

• continental crust and continental crust

• oceanic crust and continental crust.

Tags

NGSS.HS-ESS2-1

Which type of crust is more dense, oceanic crust or continental crust?

• continental crust

• oceanic crust

What layer of the earth is soft, solid rock underneath Earth’s plates

• crust

• inner core

• outer core

• mantle

Convection currents occur in the ____________.

• crust

• inner core

• mantle

A subduction zone is where two plates do what?

• Collide and the more dense plate is pushed under and destroyed.

• Spread apart to form new crust.

• Collide and form mountains.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

A mid ocean ridge is where two plates do what?

• Collide and the more dense plate is pushed under and destroyed.

• Spread apart to form new crust.

• Collide and form mountains.

Tags

NGSS.MS-ESS2-3

Convection currents in the mantle cause

• hot magma to rise up and cool dense magma to sink down

• cooler magma to rise up and warmer magma to sink down

• warming at the equator

Tags

NGSS.MS-ESS2-3

Convection currents in the mantle are caused by differences in what?

• temperature and dens

• ma

• size

Which explanation best describes how the Lystrosaurus fossils were discovered in South America and India?

• They swam from one continent to the other

• The plates moved slowly away from each other over millions of years.

• The plates slowly moved apart as new plates were added between them.

• The plates were pushed far apart by earthquakes

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

The scientist who came up with the Theory of Continental Drift was .......

• Alfred Wegener

• Albert Einstein

• Alfred Nobel