Planet Hunter

What does the word drones mean?

• acts carefree and happy

• makes a low, continuous tone

• walks in a slow, slumped manner

• constantly changes the level of sound

A galaxy is

• a large system of stars.

• a large collection of planets.

• a small combination of planets and stars.

• a small group of stars in a solar system.

What is an example of deduction?

• the use of reasoning to determine a conclusion

• the use of information to identify a question

• the use of research to learn more details

• the use of evaluation to determine worth

What does the word colleagues mean?

• longtime friends

• teachers or instructors

• associates in a profession

• existing personal relationships

Which word has almost the same meaning as the word verify?

• accuse

• confirm

• discredit

• reform

What does the word ultimately mean?

• in the end

• in the beginning

• in a timely manner

• in the quickest way possible

Which word has almost the same meaning as the word sustain?

• alter

• decrease

• restrict

• support

Which word has the opposite meaning of the word conservatively?

• cautiously

• joyfully

• recklessly

• sincerely

According to the passage, how are the planet orbiting the star Gliese 436 and Earth similar?

• They are made up of rocks and water.

• They have people-friendly climates.

• They are extrasolar.

• They share a moon.

According to Marcy, how many planets like Earth could there be in the Milky Way galaxy?

• thousands

• millions

• billions