Earth Crust Mantle and Core

What layer of Earth do we live on?

• Crust

• Core

• Mantle

What layer is the hottest?

• Core

• Crust

• Mantle

True or False: 
The Earth's thin shell of hard rock is called the crust.

• True

• False

If we compare the temperature and pressure of the Earth’s mantle to the core, what differences can we expect as we move downward into the Earth?

• Both the temperature and pressure increase.

• Both the temperature and pressure decrease.

• The temperature increases and the pressure decrease.

• The temperature decreases and the pressure increases.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which layer has convection currents where the hot, less dense magma rises and the cooler, dense magma sinks?

• inner core

• outer core

• mantle

• crust

How can you describe the “heat flow” or convection currents in the Earth’s mantle?

• When magma is heated by the core, it becomes dense and sinks. When magma cools, it becomes dense and rises.

• The heat flow in the mantle bubbles up under the surface causing the surface to be warm.

• When magma is heated by the core, it becomes less dense and rises. When magma cools, it becomes dense and sinks.

• Heat flow comes up through volcanoes making the Earth warm enough to sustain life.

Tags

NGSS.MS-ESS2-1

What is the hot, convecting layer that is located directly under the crust?

• mantle

• crust

• inner core

• outer core

Which layer of the Earth is the most dense?

• crust

• mantle

• inner core

• outer core

The soft layer of the mantle on which the tectonic plates move

• Asthenosphere

• Outer Core

• Mantle

• Mesosphere

What are the two kinds of crust that the Earth has?

• Oceanic and Crustatious Crust

• Oceanic and Continental Crust

• Optic and Continental Crust