Lesson 4 - The Sun
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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
The types of energy that stream from the sun’s corona are: Select all that apply.
Solar wind is another type of solar activity. Solar wind consists of non-visible, high-powered energy such as X-rays and microwaves. These particles stream out from the corona in all directions