8.8A Components of the Universe Mini Flashcard #2

Front

What is a nebula?

Back

A nebula is a large cloud of dust and gas in space that may spin and eventually become a star.

Front

Which student correctly described a nebula and a star?

Back

Student 3 described the two celestial bodies correctly.

Front

What is a galaxy?

Back

A galaxy is a massive system of stars bound together by gravity.

Front

How does the mass of a galaxy compare to that of a star?

Back

A galaxy has more mass than a star but less mass than the universe.

Front

What is a star?

Back

A star is a celestial body composed of gases that emit light due to nuclear reactions.

Front

What is the primary component of a nebula?

Back

The primary component of a nebula is dust and gas.

Front

What role do nebulae play in the formation of stars?

Back

Nebulae can spin and collapse under gravity to form stars.

Front

What is the relationship between stars and galaxies?

Back

Stars are individual celestial bodies that make up galaxies.

Front

What is the difference between a star and a planet?

Back

A star emits light due to nuclear fusion, while a planet does not emit light and orbits a star.

Front

What is the significance of gravity in galaxies?

Back

Gravity binds the stars together in a galaxy.