Types of Galaxies Quiz

What are the three main shapes of galaxies?

• Oval, Rectangular, Hexagonal

• Spiral, Elliptical, Irregular

• Spherical, Cubical, Cylindrical

• Circular, Square, Triangular

Which component of a spiral galaxy contains older stars?

• Bulge

• Spiral Arms

• Disk

• Halo

What is the shape of elliptical galaxies compared to?

• Fat, fuzzy footballs

• Flat pancakes

• Sharp triangles

• Thin disks

Which type of galaxy is the Milky Way classified as?

• Spherical

• Irregular

• Spiral

• Elliptical

What is a characteristic of irregular galaxies?

• They have a spiral pattern

• They have no definitive shape

• They are always large

• They contain only old stars

Which component of a spiral galaxy contains younger and hotter stars?

• Disk

• Core

• Halo

• Bulge

What do elliptical galaxies lack?

• Globular clusters

• Dust

• New star formation

• Old stars

What is the halo of a spiral galaxy known to contain?

• Young stars

• Gas clouds

• Globular star clusters

• Black holes

Which galaxies are often small in size?

• Irregular galaxies

• Elliptical galaxies

• Spiral galaxies

• Spherical galaxies

What is the estimated number of stars in the Milky Way galaxy?

• 1 million to billions

• 200 to 400 billion

• 50 to 100 million

• 10 to 20 billion