Earth's Layers

Front

What are the three main layers of the Earth?

Back

Crust, Mantle, Core.

Front

What is the composition of the Earth's crust?

Back

The crust is primarily composed of rocks such as granite and basalt, and minerals like quartz.

Front

What is the mantle made of?

Back

The mantle is made of silicate rocks that are rich in iron and magnesium.

Front

What is the outer core primarily composed of?

Back

The outer core is primarily composed of liquid iron and nickel.

Front

What is the inner core?

Back

The inner core is a solid sphere made mostly of iron and nickel, under extreme pressure.

Front

What is the difference between oceanic and continental crust?

Back

Oceanic crust is thinner and denser, primarily composed of basalt, while continental crust is thicker and less dense, primarily composed of granite.

Front

How do scientists study the Earth's interior?

Back

Scientists study the Earth's interior using seismic waves generated by earthquakes.

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

What is the asthenosphere?

Back

The asthenosphere is a semi-fluid layer of the mantle that allows for the movement of tectonic plates.

Front

What is the significance of the Earth's core?

Back

The Earth's core generates the planet's magnetic field and is crucial for the geothermal energy.