Earth's Interior

Which of Earth's layers is made of solid iron and nickel?

• crust

• mantle

• outer core

• inner core

Which layer of the Earth is the thickest at about 1802 miles (2900 km) and makes up about 84% of Earth's total volume?

• crust

• mantle

• outer core

• inner core

Which area of the Earth is least dense ?

• Outer core

• inner core

• mantle

• crust

Which of the following increases as depth increases into the Earth? (multi-select)

• concentration

• pressure

• temperature

• density

What is the thinnest layer of the Earth?

• Mantle

• inner core

• outer core

• crust

How do scientists know the Earth has layers?

• Drilling into the mantle

• Volcanoes

• Seismic waves data

• ocean waves

Which layer contains both the upper mantle and the crust?

• lithosphere

• atmosphere

• mesosphere

• asthenosphere

Which layer of the earth is composed of molten metal?

• Crust

• Mantle

• Outer Core

• Inner Core

Name the two types of crust

• Land and Sea

• Oceanic and Land

• Land and Continental

• Oceanic and Continental

Choose the statement that is true:

• Oceanic crust is thinner than Continental Crust and denser than Continental Crust

• Oceanic crust is thicker than Continental Crust and denser than Continental Crust

• Continential crust is thinner than OceanicCrust and denser than Oceanic Crust

• Continental crust is thicker than Oceanic Crust and denser than Oceanic Crust