Structure of the Earth and Convection Currents

What is the Earth's surface broken up into?

• Tech Plates

• Tectonic Plates

• Dinner Plates

• Plates of Tectonics

Select all of the right answers.

Which ones of these are layers of the Earth?

• Crust

• Inner Core

• Mantle

• Outer Crust

Which layer is the yellow layer?

• Inner Core

• Outer Core

• Mantle

• Crust

Which layer is the red layer?

• Inner Core

• Outer Core

• Mantle

• Crust

Which layer is the orange layer?

• Inner Core

• Outer Core

• Mantle

• Crust

Which is the correct fact about the inner core?

• This is the thinnest layer and the one that we live on.

• It is made of liquid iron and nickel.

• It is a dense, solid ball of iron and nickel. As it is under extreme pressure, it is solid.

• The thickest layer is at 2900 km.

Which is the correct fact about the mantle?

• The temperature is between 4500 and 5500°C.

• The temperature can reach 6000°C (hot as the surface of the Sun).

• It is a dense, solid ball of iron and nickel. As it is under extreme pressure, it is solid.

• Temperature varies from 1000°C near the crust, to 3700°C near the core.

Which is the correct fact about the crust?

• Two main types of crust: continental and oceanic.

• The asthenosphere is denser, more mobile and about 100–300 km thick.

• The thickest layer is at 2900 km.

• Upper mantle has two sections: asthenosphere and lithosphere.

True or false.

The inner core is about 1200km thick

• True

• False

True or false.

The Oceanic Crust is up to 8km deep

• True

• False