Earth has two cores

How much is known about the

geology of Earth's center?

• next to nothing

• little

• loads

• everything

What surrounds Earth's core?

• lava

• oceans

• a (solid rock) mantle

• a (delicate) underground

  ecosystem

How deep is the core below the

surface of the earth?

• 29,000 km

• 3,485 kilometers

• 3,855 kilometers

• 2,900 km

What is Dr Sunyoung Park's field of expertise?

• astrophysics

• geophysics

• biophysics

• quantum physics

What might the second core consist of?

• a layer of fluid rock

• water

• mineral deposits

• a vacuum

What does Dr Sunyoung Park find intriguing?

• Earth's core

• space

• minerals

• rocks

What constitutes the largest part of Earth?

• the crust

• oceans

• mountain ranges

• the mantle

What does Dr Park say can help us to learn more about the core?

• ChatGPT

• the Internet

• deep earthquakes

• minerals

What influences the evolution of

our planet?

• seismic forces

• time

• waves

• the speed of mantle flows

What is our limited understanding of Earth currently based on?

• our brain's power

• a lot of assumptions

• computing power

• not much