Earth’s Interior

Which area of the Earth is least dense ?

• Outer core

• inner core

• mantle

• crust

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 wave data

• ocean waves

Which of the following increases as depth increases into the Earth? (choose all that apply)

• time

• Pressure

• temperature

• density

Which layer of earth is molten (liquid metal)?

• inner core

• outer core

• crust

• lithosphere

Which layer of Earth is solid and why?

• The inner core is solid because of movement of the outer core.
• The inner core is solid because of the freezing temperatures.
• The inner core is solid because of the extreme pressure from the other layers.
• The outer core is solid because of the extreme pressure from the other layers.

Which layers make up the mantle?

• crust, inner core, outer core

• upper and lower mantle (Earth is mostly mantle)

• bottom part of the mantle

• crust only

Which layer is plastic and has the consistency of silly putty allowing movement?

• asthenosphere
• lithosphere
• mesosphere
• crust

Tags

NGSS.MS-ESS2-1

Which layer of Earth has a temperature of up to 13,000^o F and is hotter than the sun's surface?

• crust

• mantle

• outer core

• inner core

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

• crust

• mantle

• outer core

• inner core