"The Core" Flashcard

Front

What is the Marianna Trench?

Back

The Marianna Trench is the deepest part of the world's oceans, located in the western Pacific Ocean.

Front

Why was the Marianna Trench chosen as the starting point for the journey to the core?

Back

It is the deepest place on Earth and the crust is the thinnest.

Front

What is the electro-magnetic (EM) field?

Back

The EM field is a physical field produced by electrically charged objects, which affects the behavior of charged objects in the vicinity.

Front

Why is the EM field important to life on Earth?

Back

It protects the planet from cosmic radiation and provides the north and south poles.

Front

What drives the Earth's electro-magnetic field?

Back

The rotation of the liquid outer core.

Front

What are the colored lights in the sky called?

Back

Aurora (borealis), also known as the Northern Lights.

Front

What are the main layers of the Earth?

Back

The main layers are the crust, mantle, outer core, and inner core.

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 above the inner core.

Front

What is the inner core?

Back

The inner core is a solid sphere composed primarily of iron and nickel, located at the center of the Earth.

Front

What is the mantle?

Back

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