15 Questions
What process does a star use to generate heat and light?
Nuclear fusion
How do scientists determine the elements that make up a star?
By analyzing the emissions spectra of the light they produce
Why is the sun's location near the center of the solar system important?
It keeps all the planets in their individual orbits
What is the main reason why Earth is warm enough for life to survive?
The heat and light produced by the sun
What determines the amount of solar radiation planets receive from the sun?
Their distance from Earth
What is the main characteristic of red dwarf stars compared to main-sequence stars?
They are cooler
Which type of star is believed to have a life span of 10 trillion years?
Red dwarf stars
What happens when a red supergiant star dies?
It explodes into a supernova
Which category of stars has a life span of several hundred thousand years?
Bright blue tinted stars
What is a defining characteristic of neutron stars?
They have a very high temperature
What is the initial stage in the life cycle of a star?
Fusing hydrogen atoms
What are the products of fusing two hydrogen atoms together?
Deuterium and tritium
What can effectively block gamma rays from penetrating?
Thick metal barriers
Why does a star appear brighter when it is hotter?
Higher heat emits more visible light
What factor can affect how bright a star appears from Earth?
The distance between Earth and the star
Explore the fascinating world of stars, from their formation to the process of nuclear fusion that makes them glow. Learn how scientists analyze the emissions spectra of stars to determine their composition.
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