Galaxies

Front

What is the Universe?

Back

Space and all the matter and energy in it.

Front

How many stars are typically found in a galaxy?

Back

Billions.

Front

What holds galaxies together?

Back

Gravitational attraction.

Front

What type of galaxy has spiral arms?

Back

Spiral galaxy.

Front

Order these from smallest to largest: Planets, Solar System, Galaxy, Universe.

Back

Planets, Solar System, Galaxy, Universe.

Front

What is a galaxy?

Back

A large system of stars, gas, dust, and dark matter bound together by gravity.

Front

What are the three main types of galaxies?

Back

Spiral, Elliptical, and Irregular.

Front

What is a Spiral Galaxy?

Back

A galaxy characterized by its spiral shape, with arms that wind outward from the center.

Front

What is an Elliptical Galaxy?

Back

A galaxy shaped like a flattened sphere, with no distinct features like spiral arms.

Front

What is an Irregular Galaxy?

Back

A galaxy that does not have a distinct regular shape, often chaotic in appearance.