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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 21, To The Sky!, Chapter 22, Tiptoeing Through the Milky Way.

Multiple Choice Questions

1. One feature that Sagan suggests would be easier to detect that human intelligence would be flatulence from what kind of animal?
(a) Cows.
(b) Plankton.
(c) Sheep.
(d) Krill.

2. Which of the following is one of the "great demotions" that Sagan cites?
(a) There are planets orbiting other stars.
(b) Light and magnetism are the same thing.
(c) There may have been life on Mars.
(d) The Earth is 6 billion years old.

3. At the time this book was written, how many Mars Observers had been flown successfully?
(a) Five.
(b) One.
(c) Three.
(d) None.

4. What is notable about pictures taken of the Earth from the moon?
(a) The Earth is always in a half-eclipse.
(b) There is no visible sign of mankind.
(c) No landmasses can be seen.
(d) The Earth appears completely dark.

5. When was Neptune discovered?
(a) 1645.
(b) 1955.
(c) 1912.
(d) 1846.

Short Answer Questions

1. What does the Geocentric theory state?

2. Which of the following is NOT one of the missions that observed Venus using radar telescopes?

3. Sagan suggests that ancient people did not think of the moon as which of the following?

4. About how large a percentage of the mass of the total universe does dark matter make up?

5. Kuiper discovered that Titan has what chemical vital to the development of life?

(see the answer key)

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