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The Life Cycle of Stars

Across
A reactor that joins atoms to produce heat and energy
Heavy elements like gold are produced by heat and _________
A heavenly body that produces its own heat
What fire does
An explosion of a massive star
To get bigger or grow
Last phase of a giant star about 10X bigger than our sun
The name of our galaxy and a chocolate bar
Peratining to stars
More red
The densest, heaviest thing in the universe
Possible lifespan of a low mass star
The center
The name of our sun
The most common element in the universe, it's found in water
What stars do when they go supernova
Down
Color of the hottest stars
The third element produced after the Big Bang
Noun form of "hot"
The next phase of our sun's life
A dying phase of a star, ______ nebula
To become smaller
Largest type of stars
A neutron star that spins and produces radio waves
Its where you put a baby or buy a plant
A large cluster of stars
Element found at core of a white dwarf
Inert (inactive) gas derived from hydrogen in fusion reaction
Opposite of giant
Not stable, crazy, a star in planetary nebula phase