A Star's Life Cycle

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THE DEATH OF A LOW OR MEDIUM MASS STAR: After a low or medium mass star has become a red giant, the outer parts grow bigger and drift into space, forming a cloud of gas called a planetary nebula. The blue-white hot core of the star that is left behind cools and becomes a white dwarf. The white dwarf eventually runs out of fuel and dies as a black dwarf.

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I read this.

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Identify what is occurring at stage 1.

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A cloud of gas and dust place where stars are created.

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Identify what is occurring at stage 2: The force of gravity pulls a nebula together forming clump called a ____________.

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protostar

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Identify what is occurring at stage 3.

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Hydrogen atoms are fused together generating an enormous amount of energy fueling the Main Sequence star.

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Identify what is occurring at stage 4.

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The star begins to run out of fuel and expands.

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Identify what is occurring at stage 5.

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A star grows so much that the gravity can longer hold onto all layers - Matter is cast off into the universe to be recycled.

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Identify what is occurring at stage 6.

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A star has no more energy, only emitting light from left over star remnants after gas and dust are dispersed into space.

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the remains of a high mass star

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neutron star

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star left at the core of a planetary nebula

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white dwarf

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the earliest stage of a star ’s life

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protostar