Earth's Layers and Tectonics

The layers of the Earth are the:

• hydrosphere, atmosphere, troposphere, outer core and inner core

• stratosphere, ionosphere, troposphere, outer core and inner core

• crust, mantle, outer core and inner core

• tectonic plates, faults, lithosphere and core

Tags

NGSS.MS-ESS1-4

The portion of Earth underneath the crust containing the asthenosphere and the mesosphere is the

• mantle

• core

• tsunami

• magma

The outer layer of Earth's crust is made up of huge pieces of rock called

• faults

• tectonic plates

• magma

• tsunamis

The borders, or cracks, between tectonic plates are called

• lithospheres

• synclines

• anticlines

• faults

Tectonic plates move due to

• the moon

• tsunamis

• heated currents deep within Earth

• the formation of mountains over time

Tags

NGSS.MS-ESS2-3

Scientists use a machine called a(n) __________ to study earthquatkes.

• Pangaea

• seismograph

• anticline

• magnitude

Scientists believe that 250 million years ago _________.

• the continents were farther apart

• the continents were underwater

• there was only one active volcano on Earth

• The continents were connected

Tags

NGSS.MS-ESS2-3

A tsunami is caused by

• tectonic plates moving underwater

• inactive volcanoes building up pressure

• tectonic plates sinking

• the crust melting into the mantle

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

The Earth's inner core is made mostly of

• magma

• halite

• iron

• diamond

Over millions of years, folds can ________.

• form mountains and valleys

• cause volcanic eruptions

• become sinkholes

• create new continents

Tags

NGSS.MS-ESS2-2