Earth's Structure Part 1

List the three compositional layers of Earth.

• crust, mantle, core
• lithosphere, asthenosphere, mesosphere
• inner core, outer core, middle core

Which compositional layer is made of iron and some nickel?

• crust
• mantle
• core

Which physical layer is the thinnest?

• crust
• mantle
• core

List the 5 physical layers in order from outermost to innermost.

• crust, mantle, inner core, outer core, mesosphere
• litho, meso, astheno, inner core,  outer core
• litho, astheno, meso, outer core, inner core

Which layer of the core is solid?

• inner
• outer

Which layer of the core is liquid?

• inner core
• outer core

Which is not a characteristic of a mineral?

• inorganic
• liquid
• naturally occurring
• crystalline structure

Which property of a mineral is it when you look at the color of the powdered form of a mineral?

• luster
• streak
• hardness
• cleavage

Igneous rocks form from

• extreme heat and pressure inside the Earth.
• the cooling of melted rock.
• pieces of sediment stuck together.

Sedimentary rocks form from

• extreme heat and pressure deep inside the Earth.
• the cooling of melted rock or magma and lava.
• pieces of sediment stuck together.