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This quiz consists of 5 multiple choice and 5 short answer questions through Part 5, Chapter 25.

Multiple Choice Questions

1. What components were central to the apparatus that Henry Cavendish used to determine the density of Earth?
(a) Chutes and slides.
(b) A burner, gases, and switches.
(c) Weights, counter-weights, and pendulums.
(d) Boiling water, a tub, and a barrel.

2. In a span of just 20 years, the number of known moons in the solar system grew from:
(a) 60 to more than 500.
(b) 10 to more than 25.
(c) 30 to more than 90.
(d) 12 to more than 300.

3. After noticing an unusual phenomenon with uranium salts and a photographic plate, Henri Becquerel asked one of his graduate students to investigate the matter. Who was this student?
(a) Louise Désirée Lorieux.
(b) René Just Haüy.
(c) Marie Curie.
(d) Wilhelm Conrad Röntgen.

4. Gregor Mendel, who conducted research on transmittal of traits in pea plants, was a scientist and a:
(a) Blacksmith.
(b) Politician.
(c) Soldier.
(d) Monk.

5. While he worked at General Motors Research Corporation in 1921, engineer Thomas Midgley, Jr. developed what dangerous gasoline additive?
(a) Combustion catalyst.
(b) Tetraethyl lead.
(c) Isopropyl alcohol.
(d) Hydrochloric acid.

Short Answer Questions

1. Anders Celsius, who designed the Celsius thermometer, was an:

2. When did the last supervolcano erupt on Earth?

3. What was the HMS Beagle, and how was it related to Charles Darwin?

4. Regarding species that have gone extinct, scientists generally:

5. Earth is the only planet in the solar system to have what?

(see the answer key)

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