U1W2

Front

What is a supernova?

Back

A gigantic explosion that occurs at the end of a large star's life cycle, resulting in the star's death.

Front

True or False: Our sun is located on one of the Spiral Galaxy arms.

Back

True

Front

What is a light year?

Back

The distance light can travel in a year.

Front

What type of galaxy is characterized by a smooth, featureless shape?

Back

Elliptical galaxy.

Front

What is the first stage in the life cycle of a star like our sun?

Back

Nebula.

Front

What stage follows the nebula in the life cycle of a star?

Back

Fusion stage.

Front

What is the final stage of our sun's life cycle?

Back

Black dwarf.

Front

What happens to a star during the red giant phase?

Back

The star expands and cools after exhausting its hydrogen fuel.

Front

What is the main process that powers stars like our sun?

Back

Nuclear fusion.

Front

What is the difference between a black hole and a supernova?

Back

A supernova is an explosion marking the end of a star's life, while a black hole is a region in space with a gravitational pull so strong that nothing, not even light, can escape from it.