Layers of the Earth Test

Front

What is the asthenosphere?

Back

The asthenosphere is a part of the mantle that is semi-fluid and allows tectonic plates to move.

Front

Which layer of the Earth is the thinnest?

Back

The crust is the thinnest layer of the Earth.

Front

What are tectonic plates?

Back

Tectonic plates are pieces of the lithosphere that carry continents and oceans.

Front

What is the lithosphere?

Back

The lithosphere is the rigid outer layer of the Earth, consisting of the crust and the upper mantle.

Front

What is the asthenosphere's position relative to the lithosphere?

Back

The asthenosphere is located below the lithosphere.

Front

What elements primarily make up the Earth's core?

Back

The core is mostly made up of Nickel and Iron.

Front

What is the mantle?

Back

The mantle is the thick layer of the Earth located between the crust and the core.

Front

What is the difference between the inner core and outer core?

Back

The inner core is solid, while the outer core is liquid.

Front

What is continental drift?

Back

Continental drift is the theory that continents move over geological time.

Front

What is sea floor spreading?

Back

Sea floor spreading is the process by which new oceanic crust is formed at mid-ocean ridges.