The Powerhouse Sun: Surface activity of the sun

The video explains the sun's massive size and its role in the solar system, comprising 99.8% of its mass. It describes the photosphere, a thin shell of gas that emits sunlight, and the dynamic processes within it, such as bubbling granules. Sunspots, cooler regions caused by magnetic fields, are discussed, along with their temperature differences. The solar cycle, an 11-year process involving magnetic field reversals, is explained, highlighting the sun's differential rotation. The video also covers the chromosphere, where solar prominences occur, driven by magnetic forces.

How many times could Earth fit inside the sun?

• Just once

• About a thousand times

• Around a hundred times

• Over a million times

What causes the cooler temperature of sunspots compared to the surrounding photosphere?

• Local magnetic fields

• Lack of sunlight

• Presence of water

• Higher altitude

How often does the sun's magnetic field reverse?

• Every 5 years

• Every 11 years

• Every 20 years

• Every 50 years

How long does it take for the sun's equator to complete one rotation?

• 40 days

• 30 days

• 25 days

• 34 days

What is a solar prominence?

• A solar eclipse

• An arch of searing gas

• A burst of light

• A type of sunspot