What is the essential question discussed in the video?

• What is the composition of Earth's core?

• What is the deepest hole we can possibly dig?

• What causes earthquakes?

• How do tectonic plates move?

Tags

NGSS.MS-ESS2-3

What is the outermost layer of the Earth called?

• Outer Core

• Inner Core

• Mantle

• Crust

Which type of crust is denser?

• Neither, they have the same density

• Both are equally dense

• Continental crust

• Oceanic crust

What state of matter is the outer core in?

• Solid

• Liquid

• Gas

• Plasma

What makes up the tectonic plates?

• Asthenosphere

• Lithosphere

• Mantle

• Outer Core

What is the asthenosphere sometimes referred to as?

• Solid

• Gas

• Liquid

• Plastic

What causes Earth's plates to move?

• Magnetic fields

• Solar radiation

• Convection currents in the mantle

• Gravitational pull

Tags

NGSS.MS-ESS2-3

What are the two sources of Earth's internal heat?

• Magnetic fields and radioactive decay

• Gravitational pull and solar radiation

• Primordial heat and radioactive decay

• Solar radiation and magnetic fields

What happens to the hot material in the mantle as it rises?

• It becomes more dense

• It cools down

• It sinks

• It remains at the same temperature

Tags

NGSS.MS-ESS2-1

What is a convection cell?

• A type of tectonic plate

• A circular pattern of rising and sinking material in the mantle

• A type of earthquake

• A layer of the Earth's crust