Exploring the Layers of the Earth

The video explores Earth's structure, detailing its layers: crust, mantle, outer core, and inner core. It explains the composition and properties of each layer, including the lithosphere and asthenosphere. The video also discusses how scientists study Earth's interior using seismic waves and volcanic activity. The Earth's magnetic field, generated by the outer core, is highlighted, along with the extreme conditions of the inner core.

What is the approximate distance from the Earth's center to its surface?

• 4,000 miles

• 6,000 miles

• 8,000 miles

• 2,000 miles

What is the outermost layer of the Earth called?

• Core

• Crust

• Mantle

• Lithosphere

How thick is the Earth's crust beneath the continents?

• 50 miles

• 5 miles

• 10 miles

• 25 miles

What is the largest layer of the Earth?

• Crust

• Mantle

• Outer Core

• Inner Core

What is the lithosphere composed of?

• Mantle and outer core

• Crust and inner core

• Outer core and inner core

• Crust and upper mantle

What is the asthenosphere's consistency compared to?

• Solid rock

• Plastic-like

• Gas

• Liquid water

Tags

NGSS.MS-PS1-4

What creates the Earth's magnetic field?

• Solidification of the inner core

• Movement of the lithosphere

• Movement of liquid metals in the outer core

• Heat currents in the mantle

What is the inner core primarily made of?

• Silicon and oxygen

• Magnesium and aluminum

• Iron and nickel

• Carbon and hydrogen

Tags

NGSS.MS-PS1-1

How do scientists study the Earth's interior?

• Using seismic waves

• By drilling to the center

• Using satellite images

• By observing the surface

What is the temperature of the inner core?

• Up to 13,000 degrees Fahrenheit

• Up to 15,000 degrees Fahrenheit

• Up to 11,000 degrees Fahrenheit

• Up to 7,900 degrees Fahrenheit