Earth's Interior

Front

What is the inner core of the Earth?

Back

The inner core is the innermost layer of the Earth, composed primarily of iron and nickel, and is solid due to the extreme pressure from the overlying layers.

Front

Why is the inner core solid?

Back

The inner core is solid because of the extreme pressure from the other layers of the Earth, which prevents it from melting despite the high temperatures.

Front

What is the outer core?

Back

The outer core is the layer of the Earth located beneath the mantle and above the inner core, composed of liquid iron and nickel, and is responsible for generating Earth's magnetic field.

Front

What evidence did Alfred Wegener use to support the theory of continental drift?

Back

Alfred Wegener used fossil evidence, showing that similar fossils were found on different continents, indicating that they were once connected.

Front

Who proposed the theory of continental drift?

Back

Alfred Wegener proposed the theory of continental drift, suggesting that continents were once part of a single landmass.

Front

What are seismic waves?

Back

Seismic waves are energy waves that travel through the Earth, generated by earthquakes or other geological activity.

Front

What is the mantle?

Back

The mantle is the thick layer of the Earth located between the crust and the outer core, composed of semi-solid rock that flows slowly over time.

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 the semi-fluid layer of the mantle located beneath the lithosphere, allowing for the movement of tectonic plates.

Front

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

Back

The inner core is solid and composed mainly of iron and nickel, while the outer core is liquid and also composed of iron and nickel.