Layers of the Earth

Which layer of the Earth is the thinnest?

• mantle

• crust

• outer core

• inner core

What is the composition of the Earth's crust?

• carbon, nitrogen, hydrogen, helium, neon, argon, krypton, and xenon

• gold, silver, platinum, copper, zinc, nickel, tin, and lead

• mercury, sulfur, phosphorus, chlorine, bromine, iodine, and astatine

• oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium

Tags

NGSS.MS-ESS3-1

Which layer of the Earth is responsible for generating Earth's magnetic field?

• crust

• outer core

• mantle

• inner core

What is the temperature range of the Earth's mantle?

• 100 to 300 degrees Celsius

• 1000 to 1500 degrees Celsius

• 500 to 900 degrees Celsius

• 50 to 100 degrees Celsius

Which layer of the Earth is made up of solid iron and nickel?

• crust

• inner core

• mantle

• outer core

What is the thickness of the Earth's crust?

• 10 kilometers (6 miles)

• 50 kilometers (31 miles)

• 100 kilometers (62 miles)

• 35 kilometers (22 miles)

What is the boundary between the Earth's crust and mantle called?

• Moho discontinuity

• Asthenosphere

• Lithosphere

• Outer core

Which layer of the Earth is the thickest?

• atmosphere

• core

• crust

• mantle

What is the state of matter of the Earth's outer core?

• plasma

• gas

• solid

• liquid

What is the depth of the Moho?

• 35 kilometers

• 100 kilometers

• 50 kilometers

• 10 kilometers