
Components of the Universe
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are the main components of the universe?
Back
The main components of the universe include galaxies, stars, planets, moons, asteroids, comets, and dark matter.
2.
FLASHCARD QUESTION
Front
What is a galaxy?
Back
A galaxy is a massive system that consists of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.
3.
FLASHCARD QUESTION
Front
What is the life cycle of a star?
Back
The life cycle of a star includes stages such as nebula, main sequence, red giant, and supernova or white dwarf, depending on its mass.
4.
FLASHCARD QUESTION
Front
What determines the life cycle of a star?
Back
The star's initial mass is the main factor that determines its life cycle.
5.
FLASHCARD QUESTION
Front
What is a planet?
Back
A planet is a celestial body that orbits a star, is spherical in shape, and has cleared its orbit of other debris.
6.
FLASHCARD QUESTION
Front
Why do planets orbit the sun?
Back
Planets orbit the sun because the sun has more mass, creating a strong gravitational pull.
7.
FLASHCARD QUESTION
Front
What is a black hole?
Back
A black hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it.
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