Lesson 4 - The Sun Flashcards
chromosphere
the middle layer of the sun’s atmosphere, considered to be the sun’s surface
corona
the outermost layer of the sun’s atmosphere, consisting of light gases
eclipse
the hiding of a heavenly body by another
fusion
a nuclear process in which light atoms combine to form heavier atoms, giving off energy
photosphere
the innermost layer of the sun’s atmosphere, which lies next to the sun’s core
prominence
a tall stream of gas and flame that shoots out from the chromosphere of the sun
The earth is _____ miles from the sun.
90,000,000
The diameter of the sun is more than _____ million kilometers.
1.35
The sun is critical to life on earth because:
The sun is the primary source of heat for the the earth and the solar system.
The sun is powered through a _____ fusion reaction at its core.
nuclear
The layers of the sun are:
The sun’s atmosphere consists of three layers: The photosphere, the chromosphere, and the corona.
The chromosphere refers to _____.
the middle layer of the sun’s atmosphere, considered to be the sun’s surface
The corona refers to _____.
the outermost layer of the sun’s atmosphere consisting of light gases
The photosphere refers to _____.
the innermost layer of the sun’s atmosphere, which lies next to the sun’s core
A _____ is a storm that occurs on the surface of the sun from gases.
prominence
