What is the life cycle of a star?
Life Cycle of Stars

Flashcard
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Science
•
6th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The life cycle of a star is the series of stages a star goes through from its formation in a nebula to its end state, which can be a white dwarf, neutron star, or black hole.
2.
FLASHCARD QUESTION
Front
What is a nebula?
Back
A nebula is a giant cloud of dust and gas in space, often the birthplace of stars.
3.
FLASHCARD QUESTION
Front
What happens when a star runs out of hydrogen?
Back
When a star runs out of hydrogen, it begins to fuse heavier elements, causing it to expand and change color, often becoming a red giant.
4.
FLASHCARD QUESTION
Front
What is a red giant?
Back
A red giant is a late stage in a star's life cycle when it has expanded and cooled after exhausting its hydrogen fuel.
5.
FLASHCARD QUESTION
Front
What are red supergiants?
Back
Red supergiants are the largest and most massive stars in the universe, known for their immense size and brightness.
6.
FLASHCARD QUESTION
Front
What is a planetary nebula?
Back
A planetary nebula is the ejected outer shell of gas formed by an aging star, often seen as a glowing shell around a dying star.
7.
FLASHCARD QUESTION
Front
What defines a star?
Back
A star is defined as a large sphere of gas that generates its own light through nuclear fusion.
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