Layers of the Earth 6th Grade REVIEW

Front

What is the inner core of the Earth?

Back

The inner core is a dense, solid layer primarily composed of iron, under the most pressure and with the highest temperatures, measuring about 1250 kilometers thick.

Front

What are the layers of the Earth?

Back

The Earth is composed of several layers: the crust, the mantle, the outer core, and the inner core.

Front

What is the lithosphere?

Back

The lithosphere is made up of the crust and the upper mantle.

Front

How does heat flow in the Earth's mantle?

Back

When magma is heated, it becomes less dense and rises; when it cools, it becomes more dense and sinks.

Front

What is the crust of the Earth?

Back

The crust is the outermost layer of the Earth, which is solid and relatively thin compared to other layers.

Front

What is the mantle?

Back

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

Front

What is the outer core?

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 difference between the inner core and outer core?

Back

The inner core is solid and extremely hot, while the outer core is liquid and less dense.

Front

What is the temperature range of the Earth's inner core?

Back

The temperature of the inner core can reach up to 5,700 degrees Celsius (10,300 degrees Fahrenheit).

Front

What is convection in the Earth's mantle?

Back

Convection is the process where hot magma rises, cools, and then sinks, creating a circular motion that drives plate tectonics.