Layers of the Earth and the Rock Cycle Review

How does the density of the layers of the earth change as you travel closer towards the center of the Earth?

• Density increases

• Density stays the same

• Density decreases

Which type of crust is thinner?

• Core

• Oceanic

• Continental

Which type of crust is less dense?

• Continental

• Mantle

• Oceanic

Which layer of the earth is a semi-solid? (Has plasticity)

• Crust

• Lithosphere

• Inner core

• Asthenosphere

Why is one layer of the core a liquid?

• Pressure overpowers the heat

• Heat overpowers the pressure

• Pressure and heat are equal

Tags

NGSS.MS-PS1-4

How is magma formed?

• From the melting of igneous rock

• From the melting of metamorphic rock

• From the melting of sedimentary rock

• All of the above

The crust and mantle are composed primarily of -

• the elements oxygen and silicon

• noble gases

• the elements hydrogen and iron

The asthenosphere "floats" or moves around on top of the lithosphere.

• True

• False

The lithosphere is made of -

• liquid iron and nickel

• molten rock

• solid rock

The lithosphere and the asthenosphere are a part of -

• crust

• mantle

• crust and uppermost part of the mantle