Earth's Interior

Front

What is the asthenosphere?

Back

The asthenosphere is a semi-fluid layer of the Earth's mantle located below the lithosphere, allowing for the movement of tectonic plates.

Front

What is the composition of the oceanic crust?

Back

The oceanic crust is primarily composed of basalt, a dark, dense volcanic rock.

Front

What is the lithosphere?

Back

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

Front

Why is the inner core solid?

Back

The inner core is solid due to the extreme pressure from the overlying layers, which prevents it from melting despite high temperatures.

Tags

NGSS.HS-ESS2-3

Front

What are S Waves?

Back

S Waves, or secondary waves, are seismic waves that cause particles of rock material to move at right angles to the direction of wave travel.

Tags

NGSS.MS-PS4-2

Front

What is the outer core?

Back

The outer core is a liquid layer of the Earth's interior located beneath the mantle and above the inner core, composed mainly of iron and nickel.

Front

What is the difference between the lithosphere and asthenosphere?

Back

The lithosphere is rigid and includes the crust and upper mantle, while the asthenosphere is semi-fluid and allows for tectonic plate movement.

Front

What is the role of the mantle in Earth's structure?

Back

The mantle is the thick layer of rock between the crust and the outer core, playing a crucial role in tectonic activity and heat transfer.

Front

What are body waves?

Back

Body waves are seismic waves that travel through the Earth's interior, including P Waves (primary waves) and S Waves (secondary waves).

Tags

NGSS.MS-PS4-2

Front

What are P Waves?

Back

P Waves, or primary waves, are seismic waves that compress and expand the material they travel through, moving in the same direction as the wave.

Tags

NGSS.MS-PS4-2