Universe Unit Review

Front

What type of galaxy is characterized by spiral arms and a central bulge?

Back

Spiral galaxy

Front

What is the first stage in the life cycle of a star, where it forms from a cloud of gas and dust?

Back

Protostar

Front

What is the final explosive stage in the life cycle of a massive star that results in a supernova?

Back

Supernova

Front

What season occurs in the northern hemisphere when the North Pole is tilted towards the sun?

Back

Spring

Front

What is a comet primarily made of, and what distinctive feature does it have when near the sun?

Back

Icy small body with a tail

Front

What is the term for a large cloud of gas and dust in space, often the birthplace of stars?

Back

Nebula

Front

What is the name of the stage in a star's life cycle where it spends most of its life fusing hydrogen into helium?

Back

Main sequence

Front

What type of galaxy is generally round or oval in shape and lacks spiral arms?

Back

Elliptical galaxy

Front

What is the term for a star that has exhausted its nuclear fuel and has collapsed to a very small size?

Back

White dwarf

Front

What astronomical event occurs when a massive star runs out of fuel and explodes?

Back

Supernova