The Earth and the Sun Review Crossword

Forms the outer atmosphere of the sun
Thin region below the sun's outer atmosphere
The outside layer of the sun, visible from earth
Where gases circulate inside of the sun
The thick region, where energy is generated by nuclear fusion coming out as electromagnetic radiation, of the sun
The innermost/ center and hottest region of the sun
When hydrogen atoms collide, creating helium, the hottest gas
The thinnest and outermost layer of the earth
The thickest layer of the earth, consisting of magnesium and iron
One of the cores consisting of liquified nickel and iron
The center and hottest part of the earth consisting of nickel and iron; where nuclear fusion happens
The hottest and first stage of a star's life cycle where the center gets hotter and consists of gas and dust
The second and longest stage of a star's life, consisting of gas and dust
A star that has used up all of its energy, with the center contracted and the outer layer expanded and cool
The last stage of a star's life and the leftover center of a red giant