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Science L.24

"Glow On"

QuestionAnswer
A star is a huge ball of hot gas that makes ______. heat and light
All stars create energy in their core through a process called ______. nuclear fusion
Most stars are made up of mostly two kinds of gases: ______. hydrogen and helium
Astronomers sometimes refer to a star's true brightness as its ______. luminosity
Which term means "how bright the star is, as if you were hovering right in front of it"? true brightness
Which term refers to how bright a star appears to us, when observed from Earth? apparent brightness
How many Earths could fit inside the Sun? more than a million
Which star is about 400 times bigger than the Sun, and 100,000 times more luminous? Betelgeuse
The Sun appears so big and bright to us on Earth because ______. it's so close to us
Which two factors influence a star's apparent brightness? luminosity and distance
Created by: user-2008285
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