The Sun

Front

The sun converts matter into energy in the

Back

core

Front

Most of the sun’s energy is a result of

Back

nuclear fusion

Front

When hydrogen nuclei fuse into helium nuclei

Back

energy is released.

Front

Auroras are frequently seen

Back

after solar flares.

Front

Which of the following is NOT a solar ejection? Options: prominence, sunspot, coronal mass ejection

Back

sunspot

Front

Sunspots vary in a cycle that lasts about

Back

11 yrs

Front

Strong magnetic fields on regions of the sun lead to sunspots because

Back

convection slows and energy decreases.

Front

What is the hottest layer of the sun’s atmosphere called?

Back

corona

Front

What elements make up most of the sun’s mass? Options: carbon and oxygen, carbon and hydrogen, hydrogen and helium

Back

hydrogen and helium

Front

Particles thrown off the sun’s corona that can affect Earth’s magnetic field are called

Back

a coronal mass ejection.