Answer the following questions:
According to the article, what causes a star to die?
As its gases run out, it cools down.
It collides with other stars.
It can only live for about a million years.
As it gets hotter and hotter, it explodes.
Read this sentence from the story.
They’re the mysterious dead stars called black holes.
What is a another word that we could replace the word mysterious with?
In what ways is our Sun the same as other stars? How is it different from a dead star?
Which of the following statements is NOT a fact?
Black holes are dead stars.
Black holes have gravity.
Black holes are invisible.
There is nothing as mysterious as a black hole.
What happens AFTER a star dies?
It becomes invisible.
It falls to Earth.
It burns up all of its gases.
It becomes brighter and easier to see.
What might happen to our Sun billions of years from now?
Describe the process using details from the article.