Earth Layers and Rock Cycle

Earth is composed of three layers: the core, the mantle and the crust.  How are these three layers identified?

• By Their plate tectonics

• By their structural features

• By their physical properties

• By there chemical composition

What layer of the Earth has convection currents?

• Crust

• Lithosphere

• Core

• Mantle

the outermost, rigid, PHYSICAL layer of the earth

• Crust

• Core

• Asthenosphere

• Lithosphere

The ​ ​ (a)   is the densest compositional layer and makes up one-third of Earth’s mass.

• core
• Crust
• Mesosphere
• Lithosphere
• Mantle

​ (a)   are formed from interior processes of extreme heat and pressure.

• Metamorphic rocks
• sedimentary rocks
• Igneous rocks

Which type of rock belongs in A?

• Igneous rock

• Sedimentary rock

• Metamorphic rock

Tags

NGSS.MS-ESS2-1

Which type of rock belongs in B?

• Igneous rock

• Sedimentary rock

• Metamorphic rock

Tags

NGSS.MS-ESS2-1

Which type of rock belongs in C?

• Igneous rock

• Sedimentary rock

• Metamorphic rock

Tags

NGSS.MS-ESS2-1

What is a primary substance found in the Earth's core?

• Sulfur

• Nitrogen

• Carbon

• Iron

The ​ ​ (a)   , which is semi-liquid, can be found beneath the lithosphere. This layer can flow and is thought to play a role in the movement of the lithosphere (plate tectonics).

• Asthenosphere
• Lithosphere
• Mesosphere
• Core