Our Star

What gases make up the sun?

• hydrogen and helium

• hydrogen and nitrogen

• helium and carbon dioxide

Which of the following is NOT true of stars?

• Helium keeps a star shining

• The moon and sun are both stars.

• The sun's light is so bright that stars can't be seen during the day.

• Stars close to the Earth appear brighter than those far away.

Which of the following statements best describe the sun?

• It is one of the smallest stars

• It is one of the largest stars

• It is one of the most massive stars

• It is a medium-sized star

The outer part of the sun that WE SEE...

• corona

• sun spots

• chromosphere

• photosphere

The dark areas on the Sun's surface, sunspots, are ______ than the surrounding matter.

• more active

• hotter

• less active

• cooler

True or False: Blue stars are hotter than yellow stars.

• True

• False

What is the process that occurs on the sun that produces energy?

• Nuclear fission

• gravitational compression

• kinetic compression

• Nuclear fusion

The outer atmosphere of the sun, only visible during a total solar eclipse, is called the ___.

• penumbra

• umbra

• corona

• corolla

Solar flares, prominences, coronal holes, and coronal mass ejections are all due to disturbances in _____ on the sun.

• the convective zone

• the radiative zone

• the core

• magnetic fields

Does the sun have enough mass to ever become a supernova?

• Yes

• No