Layers of the Earth Quiz

What is the thickest layer of the Earth?

• Inner Core

• Outer Core

• Mantle

• Crust

Which type of rock is the continental crust mostly composed of?

• Basalt

• Slate

• Granite

• Obsidian

What is the semi-rigid part of the middle mantle called?

• Outer Core

• Convection Currents

• Lithosphere

• Asthenosphere

What causes the movement of the crustal plates of the Earth?

• Earthquakes

• Volcanic Eruptions

• Tectonic Plates

• Convection Currents

Which layer of the Earth is composed of very hot dense rock that flows like asphalt?

• Crust

• Mantle

• Outer Core

• Inner Core

What are the metals in the outer core of the Earth composed of?

• Iron & Copper

• Nickel & Iron

• Gold & Silver

• Aluminum & Zinc

What is the temperature and pressure like in the inner core of the Earth?

• Low temperature and high pressure

• High temperature and high pressure

• High temperature and low pressure

• Low temperature and low pressure

What is the thickness of the mantle of the Earth?

• 6,378 km

• 5,100 km

• 3-5 miles

• 2,900 km

What is the composition of the oceanic crust?

• Granite Rock

• Basalts

• Obsidian

• Slate

What causes the movement of the middle mantle (asthenosphere)?

• Volcanic Eruptions

• Convection Currents

• Earthquakes

• Tectonic Plates