Layers of Earth

This layer contains most of Earth's mass.

• Inner Core
• Mantle
• Outer Core
• Crust

The core is mostly made up mostly of which elements?

• Oxygen and Silicon
• Silicon and Magnesium
• Nickel and Iron
• Iron and Magnesium

What are the two type of crust?

• Continental and Landforms
• Oceanic and Mountains
• Mountains and Landforms
• Oceanic and Continental

Why is the inner core made of solid metal?

• Because it is so hot it turns from liquid to solid
• Because of the weight of the crust
• Because of it's temperature
• Because of the pressure of the other layers beating down on it

Which layer is considered the thinnest layer?

• Mesosphere
• Core
• Mantle
• Crust

This layer is divided into pieces called tectonic plates.

• Mesosphere
• Asthenosphere
• Mantle
• Lithosphere

Approximately how deep would you have to drill to reach the center of the Earth?

• 600 Kilometers
• 6,000 Kilometers
• 60,000 Kilometers
• 600,000 Kilometers

Which layer is the least dense?

• inner core
• outer core
• mantle
• crust

Which statement is true about oceanic crust?

• It is made of melted rock.
• It is the thinner than continental crust.
• It is thicker than continental crust.
• It is made of liquid metal.

What is the lithosphere made of?

• the upper mantle
• the crust & part of upper mantle
• the crust and mantle
• the crust