Characteristics of Stars

Front

What are stars primarily made of?

Back

Stars are primarily made of gas.

Front

What is the process by which stars produce light and heat?

Back

The process is called nuclear fusion.

Front

What term describes the chemical elements that make up a star?

Back

The term is composition.

Front

What color are the coolest stars?

Back

The coolest stars are red.

Front

What are groups of billions of stars called?

Back

They are called galaxies.

Front

What is the hottest color of stars?

Back

The hottest stars are blue.

Front

What is the term for the brightness of a star as seen from Earth?

Back

The term is apparent magnitude.

Front

What is a supernova?

Back

A supernova is a powerful explosion that occurs at the end of a star's life cycle.

Front

What is the main fuel for nuclear fusion in stars?

Back

The main fuel is hydrogen.

Front

What is the term for the distance light travels in one year?

Back

The term is light-year.