Earth Structure and Processes

The outermost layer of the Earth that contains the continents and the oceans.

• mantle
• crust
• outer core
• inner core

Earth's inner core is composed mainly of:

• molten rock
• solid iron and nickel
• heated gases
• all the above 

Tectonic Plates:

• move very slowly 
• sometimes press against or pull away from each other 
• sometimes scrape against each other 
• All the above 

Hot, molten rock deep below Earth's surface is called:

• lava
• viscous rock
• parent rock
• magma

The solid outer layer of the Earth that consists of the crust and the rigid upper layer of the mantle is called the:

• crust 
• troposphere
• atmosphere
• lithosphere

German scientist Alfred Wegner developed the hypothesis of:

• Seismology 
• Continental Drift
• Volcanism 
• Oceanic Crust 

At which location would earthquakes be least likely to occur?

• 1

• 2

• 3

• 4

What causes the tectonic plates to move?

• convection currents in the mantle 
• the dynamo effect created in the core
• electric currents produced in the core
• solar flares

What kind of plate boundary is shown here?

• divergent
• convergent
• transform
• subducting

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

What kind of plate boundary is shown here?

• divergent
• convergent
• transform
• submergent

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3