Earth Structure and Layers Practice Flashcard

Front

What is the thin, solid, outermost layer of the Earth called?

Back

Crust

Front

Which layer of the Earth is composed of liquid iron and nickel?

Back

Outer Core

Front

How old is the Earth?

Back

About 4.5 billion years old

Front

What geological force is responsible for pushing up the Earth's crust to form mountains?

Back

Powerful geological forces

Front

What are the main components of the Earth's core?

Back

Iron and nickel

Front

What is the layer of the Earth located between the crust and the outer core?

Back

Mantle

Front

What is the primary function of the Earth's crust?

Back

To support life and contain natural resources.

Front

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

Back

About 4,000 to 5,500 degrees Celsius.

Front

What geological process can lead to the formation of valleys?

Back

Erosion caused by water or ice.

Front

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

Back

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