In "Black Hole Beginnings," what is described as the cause of gas and dust forming into a star?
According to "Black Hole Beginnings," the destruction of some stars results in
an intense gravitational pull.
a booming nuclear reaction.
clouds of gasses.
In "Black Hole Beginnings," what is described as an effect of a star up to nine times the mass of the sun running out of fuel?
It turns into a black hole.
It stays the same.
It turns into a white dwarf.
In which sentence from "Black Hole Beginnings" is a cause underlined?
As the star material gathers, its inward pressure grows.
The gases blast out as the star goes supernova.
It expands like hot air inside a balloon and pushes outward from the center.
Read the details described in "Black Hole Beginnings."
What is the correct order of the cause-and-effect chain?
Which word signals a cause?
Read the sentence from "Black Hole Beginnings."
As more stuff gathers, its combined gravitation grows stronger.
What question should readers ask to determine the effect in the sentence?
Where does the stuff gather?
Why does the gravitation grow stronger?
What happens when more stuff gathers?
Read the excerpt from "Black Hole Beginnings."
As the star material gathers, its inward pressure grows. The nuclei respond by zipping and zooming faster and faster, veering away from each other all the while.
Which statement best describes the cause and effect relationship(s) in this excerpt?
One cause (star material gathers) leads to one effect (inward pressure grows), which becomes a cause of two additional effects (nuclei zip and zoom, and nuclei veer away from each other).
One effect (nuclei zip and zoom) is the result of two causes (star material gathers and inward pressure grows).
Two effects (inward pressure grows and nuclei veer away from each other) are the result of two causes (star material gathers and nuclei zip and zoom).
Under the force of its own weight, the gigantic ball presses inward.
What question should readers ask to determine the cause in the sentence?
Why does the ball press inward?
What does the weight of the ball do?
How does the ball produce force?
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