U5W4 Light Detectives

Last updated over 5 years ago
10 questions
1

Why are astronomers called "light detectives"?

1

Reread "Discovering Pluto" on page 353. Based on paragraph two, what does a "blink comparator" do?

1

Reread "Scanning the Kuiper Belt". What happens next after the Brown's team takes repeated pictures of the night sky?

1

Reread "Combining New Data with Old". Because Eris's atmosphere has a high level of frozen nitrogen which reflects light, what is Brown's team believe?

1

What happened as a result of Brown's discover of Eris?

1

Brown was able able confirm his belief that Eris affected that orbits of other planets.

1

How did technology lead to the discovery of Pluto and Eris?

1

Based on the text, what is a deduction?

1

Eris was discovered to move quickly around the sun.

1

What features of Expository text are found in "Light Detectives"? Choose all that apply.