
universe and solar system
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the approximate surface temperature of the sun based on its color?
Back
10,000-30,000 degrees Fahrenheit.
2.
FLASHCARD QUESTION
Front
What is an object in space whose gravity is so strong that nothing can escape from it?
Back
A Black Hole.
3.
FLASHCARD QUESTION
Front
What property of a star determines its eventual fate?
Back
Mass.
4.
FLASHCARD QUESTION
Front
What color are the coolest stars in the universe?
Back
Red.
5.
FLASHCARD QUESTION
Front
Approximately how old is the universe?
Back
13.7 billion years.
6.
FLASHCARD QUESTION
Front
What is the main component of the universe that makes up about 68% of its total energy density?
Back
Dark Energy.
7.
FLASHCARD QUESTION
Front
What is the term for the visible light emitted by stars?
Back
Starlight.
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