Earth's Core

What is the core of the Earth made of?

• Liquid metal

• Solid iron

• Molten rock

• Gas

How do scientists know that the inner core is solid?

• Seismic waves

• Metallic meteorites

• Density calculations

• Magnetic field

What evidence suggests that the outer core is molten?

• Metallic meteorites

• Density calculations

• Seismic waves

• Magnetic field

Why does Earth have a magnetic field?

• Due to the solid inner core

• Due to the molten outer core

• Due to the metallic meteorites

• Due to the density calculations

Tags

NGSS.HS-ESS2-3

NGSS.HS-PS2-5

What is the density of Earth's core compared to the outer layers?

• Less dense

• Equally dense

• More dense

• No difference in density

What are metallic meteorites thought to be made of?

• Molten rock

• Gas

• Liquid metal

• Solid iron

What is the closest thing to Earth's core that we can hold in our hands?

• Metallic meteorite

• Molten rock

• Gas

• Solid iron

What is the inner core thought to be previously?

• Molten rock

• Gas

• Liquid metal

• Solid iron

What is the interior of the core made of?

• Molten rock

• Gas

• Liquid metal

• Solid iron

Tags

NGSS.MS-PS1-1

How are crystals aligned in the inner and outer cores?

• Randomly

• Horizontally

• Vertically

• Diagonally