Layers of the Earth & Rocks

Which layer is made (mostly) of SOLID iron and nickel?

• crust

• mantle

• outer core

• inner core

Which layer of the Earth is the THINNEST?

• crust

• mantle

• outer core

• inner core

Which layer of the Earth is the hottest?

• crust

• mantle

• outer core

• inner core

Which of the following is true regarding the composition of the lithosphere?

• The lithosphere is mostly liquid, with some medium-density materials, such as silicon.

• The lithosphere is more plastic and flows slowly compared to the solid crust of Earth.

• The lithosphere includes the core and the lower portion of the mantle.

• The lithosphere includes the crust and the uppermost portion of the mantle, which is sold and rigid.

Which of the following correctly lists the layers from innermost to outermost?

• inner core, outer core, lower mantle, upper mantle, crust

• lower mantle, upper mantle, crust, inner core, outer core

• lower mantle, inner core, upper mantle, outer core, crust

• crust, inner core, lower mantle, upper mantle, outer core

As you travel from the crust to the core, how would temperature, pressure and density of the material change?

• They would all decrease

• They would all increase.

• Nothing, the layers are made of the same material throughout

• Temperature would decrease, but pressure and density would increase

Scientists determine what Earth’s interior looks like by using:

• Volcanoes
• Seismic Waves
• Continental Drift
• Convection Currents

The continental crust is

• thinner than the oceanic crust

• thicker than the oceanic crust

• the same thickness as the oceanic crust

Rocks that are transformed into different rocks under heat and pressure are known as _____

• sedimentary rocks

• volcanic rocks

• igneous rocks

• metamorphic rocks

Tags

NGSS.MS-ESS2-2

If you wanted to collect sedimentary rocks, what sort of characteristics would you look for in a rock's composition?

• Rock made from eroded material broken off other rocks and cemented together.

• Rock that formed from magma or lava during a volcanic eruption.

• Rock that includes sparkly crystals and other types of gemstones

• Rock that has been transformed into new substances due to intense heat and pressure.