Layers of the Earth Pre/Post

Front

What is the outer core?

Back

The outer core is the only liquid layer of the Earth, located beneath the mantle and above the inner core.

Front

What protects Earth's atmosphere from solar winds and particles?

Back

Earth's magnetic field protects our atmosphere from solar winds and particles.

Front

What are the sources of Earth's thermal energy?

Back

Earth's thermal energy comes from heat left over from the planet's formation, decay of radioactive elements, and friction as material moves within the Earth.

Front

How do temperature, pressure, and density change as you travel from the crust to the core?

Back

As you travel from the crust to the core, temperature, pressure, and density all increase.

Front

What is the crust?

Back

The crust is the outermost layer of the Earth, consisting of solid rock and soil.

Front

What is the mantle?

Back

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

Front

What is the inner core?

Back

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

Front

What is the significance of the Earth's magnetic field?

Back

The Earth's magnetic field is significant because it protects the planet from harmful solar radiation and helps maintain the atmosphere.

Front

What is convection in the mantle?

Back

Convection in the mantle is the process by which hot, less dense material rises, while cooler, denser material sinks, driving plate tectonics.

Front

What are tectonic plates?

Back

Tectonic plates are large sections of the Earth's lithosphere that move and interact at their boundaries, causing earthquakes and volcanic activity.