8.E.5A.3 Composition of Earth's Layers

What is the outermost layer of the earth called?

Which is the most dense layer of the earth?

• athenosphere

• mesosphere

• mantle

• core

Density ___________ with depth due to increasing pressure.

• decreases

• increases

• goes down

• doesn't change

The asthenosphere is the top part of which layer?

• core

• lithosphere

• crust

• mantle

The core is made of _________ and __________.

• iron, nickel

• iron, rock

• magnesium, nickel

• silicates

Oceanic crust is composed of ___________.

• salt rock

• basaltic rock

• granitic rock

Continental crust is composed primarily of ___________.

• granitic rock

• basaltic rock

• marble rock

Which mechanical layer is part of the crust and the mantle?

• inner core

• mesosphere

• lithosphere

• asthenosphere

If you went 1000 km down into the earth, which layer would you be in the _____.

• mantle

• crust

• core

Which is the thickest layer of the earth?

• crust

• mesosphere

• core

• mantle