Exploring the Outer Core

What is the state of matter of the outer core?

• Solid

• Liquid

• Plasma

• Gas

What are the main elements found in the outer core?

• Iron, nickel, sulfur, and oxygen

• Copper, aluminum, silicon, and magnesium

• Lead, zinc, calcium, and hydrogen

• Carbon, phosphorus, chlorine, and argon

How thick is the outer core compared to the other layers?

• The outer core is 1,500 kilometers thick, thinner than the inner core.

• The outer core is 3,000 kilometers thick, thicker than the mantle.

• The outer core is about 2,200 kilometers thick, thicker than the inner core and thinner than the mantle.

• The outer core is 1,000 kilometers thick, equal in thickness to the inner core.

What is the temperature range of the outer core?

• 4,000 to 6,000 degrees Celsius

• 1,000 to 2,000 degrees Celsius

• 6,000 to 8,000 degrees Celsius

• 2,000 to 4,000 degrees Celsius

How does the outer core contribute to Earth's magnetic field?

• The outer core generates electric currents through the movement of molten metals, which in turn produces Earth's magnetic field.

• The outer core absorbs magnetic waves from space, enhancing the magnetic field.

• The outer core's temperature prevents any movement of metals, stopping magnetic generation.

• The outer core is solid and does not contribute to the magnetic field.

Is the outer core solid, liquid, or gas?

• solid

• gas

• plasma

• liquid

What is the depth of the outer core from the Earth's surface?

• 2900 kilometers

• 1800 kilometers

• 3200 kilometers

• 2500 kilometers

How does the movement of the outer core affect tectonic activity?

• The outer core has no impact on tectonic plates.

• The outer core movement causes earthquakes directly.

• The outer core movement cools the Earth's surface.

• The movement of the outer core affects tectonic activity by generating convection currents that influence the movement of tectonic plates.

What role does the outer core play in the Earth's geology?

• The outer core primarily contains water and supports oceanic life.

• The outer core generates the Earth's magnetic field and influences geological activity.

• The outer core is solid and does not affect geological processes.

• The outer core is responsible for the Earth's atmosphere.

Can we directly observe the outer core? Why or why not?

• We can see it through deep ocean drilling.

• Yes, we can observe it using seismic waves.

• No, we cannot directly observe the outer core.

• The outer core is visible from the Earth's surface.