The hottest layer of the earth is the _____. - -inner core
The layer of the earth that is composed of rock, yet flows due to extreme heat and pressure,
is known as the _____. - -asthenosphere
Carl is on an expedition to the bottom of the ocean. As the submersible sets down on the
ocean floor, it is resting on what layer of the earth? - -lithosphere
The ability of solid rock to flow is called - -plasticity
An area where the earth's crust would be expected to be thin would be _____. - -
under the Pacific Ocean
The layer of the earth that is composed of large plates that interlock and move over time is
the _______. - -lithosphere
The geosphere refers to the _____. - -All of the above, at the same time.
Match each Earth layer with the correct description. - -inner core- innermost region
of the earth; composed of solid iron
outer core- layer immediately outside the inner core; composed of liquid iron and sulfur
lower mantle- innermost layer of the two mantle layers; composed of rock and cooler than
the core
upper mantle- outermost layer of the two mantle layers; includes the asthenosphere and
lower lithosphere
crust- the outermost layer that forms the surface of the earth