Earth's Internal Layers Practice Test

Front

What is the inner core of the Earth?

Back

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

Front

What is the outer core of the Earth?

Back

The outer core is a liquid layer composed mainly of iron and nickel, located beneath the mantle and surrounding the inner core.

Front

What is the mantle?

Back

The mantle is the thick layer of rock between the Earth's crust and outer core, consisting of silicate minerals.

Front

What is the crust?

Back

The crust is the outermost layer of the Earth, composed of solid rock and is where we live.

Front

What are seismic waves?

Back

Seismic waves are waves of energy that travel through the Earth, used by scientists to study its internal structure.

Front

What happens to magma when it increases in temperature?

Back

When magma increases in temperature, it becomes less dense and rises towards the Earth's surface.

Front

What is the composition of the outer core?

Back

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

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 difference between the inner core and outer core?

Back

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

Front

What is the asthenosphere?

Back

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