Front

What is the lithosphere?

Back

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

Front

What is the largest layer of the Earth?

Back

The largest layer of the Earth is the Lower Mantle.

Front

What type of evidence do holes drilled into Earth's crust provide?

Back

Holes drilled into Earth's crust provide evidence about Earth's interior in the form of rock samples.

Front

What is the asthenosphere?

Back

The asthenosphere is the part of Earth's mantle lying beneath the lithosphere, believed to be much hotter and more fluid.

Front

How do geologists obtain indirect evidence about Earth's interior?

Back

Geologists obtain indirect evidence about Earth's interior by recording and studying seismic waves.

Front

What is the inner core?

Back

The inner core is the solid innermost layer of the Earth, composed mainly of iron and nickel.

Front

What is the outer core?

Back

The outer core is the liquid layer of the Earth located beneath the mantle and surrounding the inner core.

Front

What is the role of seismic waves in understanding Earth's interior?

Back

Seismic waves help geologists understand Earth's interior by providing information about the different layers based on how these waves travel through them.

Front

What is the difference between the crust and the mantle?

Back

The crust is the thin, outermost layer of the Earth, while the mantle is the thick layer beneath the crust, composed of semi-solid rock.

Front

What is the composition of the Earth's crust?

Back

The Earth's crust is primarily composed of rocks and minerals, including silicates and carbonates.