Earth Layers 1 - by Mr. Milos

What is the thinnest layer of Earth called?

• Crust

• Mantle

• Inner Core

• Outer Core

What is the difference between Continental and Oceanic Crust?

• Continental crust is denser

• Oceanic crust is thicker

• Continental crust is made of younger rocks

• Oceanic crust is denser

How thick is the Continental crust compared to the Oceanic crust?

• 50-80 km vs 3-5 km

• 80-100 km vs 5-8 km

• 10-20 km vs 5-10 km

• 30-40 km vs 1-3 km

What happens when Continental and Oceanic crust collide?

• Neither crust sinks

• Continental crust sinks

• Oceanic crust sinks

• Both crusts sink

What is the mantle made of?

• Lava

• Iron

• Soft material

• Magma

What causes movements of the crusts or movements of Tectonic plates?

• Convection movements in the inner core

• Convection movements in the outer core

• Convection movements in the crust

• Convection movements in the mantle

What is the outer core made of?

• Soft material

• Iron

• Magma

• Lava

In what condition is the outer core?

• Gas

• Liquid

• Plasma

• Solid

What is the center of the Earth called?

• Crust

• Inner Core

• Outer Core

• Mantle

In what condition is the inner core?

• Plasma

• Gas

• Liquid

• Solid