Structure of the Universe Vocabulary Flashcard (D)

Front

What is the Universe?

Back

Everything that exists, including all stars, planets, and galaxies

Front

What defines a Galaxy?

Back

A huge group of stars, gas, and dust held together by gravity

Front

What is a Solar System?

Back

The Sun and all objects that orbit around it

Front

What is a Nebula?

Back

A place where new stars are born or where old stars have exploded

Front

Which of the following best describes a Planet?

Back

A large, round object that orbits a star and reflects light

Front

What is a Light-year?

Back

A way to measure distance in space

Front

Which statement defines a Star?

Back

A ball of hot gas that gives off light and heat

Front

Heliocentric

Back

A model of the solar system with the Sun at the center

Front

What is Parallax?

Back

The way we see an object shift position from different angles

Front

Geocentric

Back

An old model that believed Earth was at the center