The Sun

What is the approximate diameter of the Sun?

• 1,000 km

• 12,742 km

• 1.4 million km

• 3 million km

Tags

NGSS.MS-ESS1-3

The Sun is primarily composed of which two elements?

• Oxygen and nitrogen

• Hydrogen and helium

• Carbon and iron

• Neon and argon

What process powers the Sun’s energy production?

• Nuclear fission

• Combustion

• Geothermal activity

• Nuclear fusion

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Where in the Sun does all the energy that causes solar activity come from?

• Corona

• Photosphere

• Core

• Convective zone

Tags

NGSS.HS-ESS1-1

Which outermost layer of the Sun’s atmosphere is visible during a total solar eclipse?

• Photosphere

• Chromosphere

• Corona

• Core

Tags

NGSS.MS-ESS1-1

What is the name of the Sun’s visible surface?

• Corona

• Photosphere

• Chromosphere

• Convective zone

Which layer lies just above the photosphere?

• Corona

• Convective zone

• Chromosphere

• Radiative zone

Sunspots appear darker than their surroundings because they are:

• Larger

• Composed of dust

• Cooler

• Moving faster

What is the approximate length of the solar cycle?

• 1 year

• 5.5 years

• 11 years

• 1000 years

Which of the following best describes a solar flare?

• A slow-moving stream of plasma

• A dark spot on the photosphere

• A sudden burst of energy from the Sun

• A loop of gas above the Sun’s surface