12 Questions
What are stars primarily composed of?
Hydrogen and helium
What are molecular clouds?
Large clouds of gas and dust
What is the primary cause of gas clumping in molecular clouds?
Cold temperatures
What is the result of clumps in molecular clouds gathering more matter?
Increase in gravitational force
What is the product of the collapse of a clump in a molecular cloud due to gravity?
Protostar
What do we call batches of stars that have recently formed from molecular clouds?
Stellar clusters
What process releases energy in a star's core, preventing it from collapsing?
Nuclear fusion
Which stars are termed 'main sequence stars' by astronomers?
Stars undergoing nuclear fusion of hydrogen into helium
What determines how rapidly a star runs through its fuel supply?
Its mass
What happens when a star's core runs out of hydrogen to convert into helium?
The core starts to collapse but the star slowly puffs up
What is the end fate of a low-mass star like our Sun?
It becomes a subgiant or giant star
What happens when silicon fuses into iron in a high-mass star?
The star runs out of fuel within days
Explore the fascinating world of stars, from the vast number in the universe to the life cycle of individual stars. Learn about the composition of stars, their formation in molecular clouds, and how their properties evolve over time.
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