Cosmology Review

Front

What stage of a star's life does it spend most of its time?

Back

Main Sequence

Front

According to the Big Bang theory, how is the universe changing?

Back

It is expanding.

Front

What explains the difference in formation between inner and outer planets in the solar system?

Back

The temperature near the Sun was too great for most gases to condense on the inner planets.

Front

Why is the sun not expected to turn into a black hole?

Back

The sun does not have enough mass to become a black hole.

Front

What supports the theory that the universe is constantly changing?

Back

The average distance between galaxies is increasing.

Front

What is cosmology?

Back

The study of the origin, evolution, and eventual fate of the universe.

Front

What is a red giant?

Back

A late stage in a star's life cycle where it expands and cools after exhausting its hydrogen fuel.

Front

What is a white dwarf?

Back

A small, dense star that is the remnant of a low or medium mass star after it has exhausted its nuclear fuel.

Front

What are the four inner planets of the solar system?

Back

Mercury, Venus, Earth, and Mars.

Front

What are the four outer planets of the solar system?

Back

Jupiter, Saturn, Uranus, and Neptune.