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This quiz consists of 5 multiple choice and 5 short answer questions through Part 5, Chapter 17.

Multiple Choice Questions

1. When French physicist Henri Becquerel accidentally left a packet of uranium salts on a photographic plate, what happened?
(a) An emission from the salts ruined the plate.
(b) The salt crystals melted into the plate.
(c) The plate became magnetic.
(d) The plate rusted.

2. What is found at the very center of the Earth?
(a) Gaseous core.
(b) Solid inner core.
(c) Frozen core.
(d) Liquid inner core.

3. What campaign did geologist Clair Patterson take on?
(a) Removing lead additives from gasoline.
(b) Fortifying milk with vitamin D.
(c) Adding fluoride to drinking water.
(d) Removing chlorine from swimming pools.

4. 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) Wilhelm Conrad Röntgen.
(c) René Just Haüy.
(d) Marie Curie.

5. Invented in the 1930s, chlorofluorocarbons (CFCs) have proven to be damaging to:
(a) The tourism industry.
(b) The ozone layer.
(c) Refrigerator production.
(d) Underground caves.

Short Answer Questions

1. Through the examples provided about Thomas Midgley's inventions, what is the author trying to say about science?

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

3. Halley believed that once scientists figured out the distance from the sun to the Earth, they could then calculate what?

4. In addition to being a seventeenth-century astronomer, Christopher Wren designed:

5. Today, scientists know that radiation in high doses is:

(see the answer key)

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