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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. Sagan believes that Titan hosts oceans made of what compound?
(a) Hydrocarbons.
(b) Saturated salts.
(c) Water.
(d) Methane.

2. What does the Geocentric theory state?
(a) The Earth moves in a perfect circle.
(b) The Earth is a flat disc.
(c) The sun moves around the Earth.
(d) The planets and heavens are all fixed.

3. What does Sagan say is an easy way to visually identify planets?
(a) Their movements.
(b) The color of their atmospheres.
(c) Their brightness.
(d) Their size.

4. What did Steven Hawking worry about with regard to black holes?
(a) That they could migrate into the solar system.
(b) That they were growing larger with time.
(c) That they could tear space-time.
(d) That there were varied types of them.

5. What is the shape of the galaxy closest to the Milky Way?
(a) Cluster.
(b) Disc.
(c) Globular.
(d) Spiral.

Short Answer Questions

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

2. What is the major difference between space exploration and human exploration in the past?

3. What concept does Sagan suggest that the image of the "pale blue dot" mocks?

4. The "great demotions" are changes in thinking about the status of what?

5. In Chapter 5 Sagan asks the reader to imagine that they are which of the following?

(see the answer key)

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