SC.5.E.5.1 Our Galaxy

Front

What is the name of our galaxy?

Back

The Milky Way.

Front

How many galaxies are in the observable universe?

Back

More than 2 trillion.

Front

What is a galaxy?

Back

A huge system that includes gas, dust, billions of stars, and objects orbiting the stars.

Front

Why does the sun appear bigger and brighter than other stars?

Back

Because it is closer to Earth.

Front

What type of galaxy is the Milky Way?

Back

Spiral galaxy.

Front

What are the main components of a galaxy?

Back

Gas, dust, stars, and objects orbiting the stars.

Front

What is the difference between a star and a galaxy?

Back

A star is a single celestial body, while a galaxy is a collection of billions of stars and other materials.

Front

What is the closest star to Earth?

Back

Proxima Centauri.

Front

What is the shape of a spiral galaxy?

Back

It has arms that spiral outward from the center.

Front

What is an elliptical galaxy?

Back

A type of galaxy that is oval-shaped and lacks the distinct arms of spiral galaxies.