Unit 5: The Universe

Front

What is a white dwarf?

Back

A small, hot star that is near the end of its life cycle.

Front

What type of galaxy has no defined pattern or shape?

Back

Irregular galaxy.

Front

Where do all stars begin their life?

Back

In a nebula.

Front

Which characteristic is NOT used to classify stars?

Back

Shape.

Front

What color of star is the hottest?

Back

Blue.

Front

What is a nebula?

Back

A large cloud of gas and dust in space, where stars are born.

Front

What is the main sequence in stellar evolution?

Back

The stage in a star's life where it fuses hydrogen into helium in its core.

Front

What is a supergiant star?

Back

A massive star that has expanded and cooled, often at the end of its life.

Front

What is a red dwarf?

Back

A small and cool star on the main sequence, often the most common type of star.

Front

What is the difference between a spiral galaxy and an elliptical galaxy?

Back

Spiral galaxies have a flat, rotating disk with arms, while elliptical galaxies are more rounded and lack distinct features.