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This quiz consists of 5 multiple choice and 5 short answer questions through Part 5, Chapter 20.

Multiple Choice Questions

1. What happened to the dinosaur bone discovered in New Jersey in 1789?
(a) It was sold to a museum in England.
(b) It had been permanently misplaced.
(c) It is part of a wealthy family's private collection.
(d) It is on permanent display at the Smithsonian.

2. Arranged side by side, how many atoms can fit across the width of a typical human hair?
(a) Five thousand.
(b) Half a trillion.
(c) Five hundred.
(d) Half a million.

3. Bacteria take nitrogen from the air and form it into what?
(a) Amino acids.
(b) Fluoride.
(c) Nitric oxide.
(d) Water.

4. According to the Caltech physicist Richard Feynman, the most important discovery ever made is what?
(a) Pasteurization.
(b) Electricity.
(c) Atoms.
(d) Penicillin.

5. Anders Celsius, who designed the Celsius thermometer, was an:
(a) Artist.
(b) Engineer.
(c) Astronomer.
(d) Architect.

Short Answer Questions

1. The strongest earthquake ever recorded was measured off the coast of Chile in 1960. What did it measure on the Richter scale?

2. What is the name of the Navy-funded mini submarine often used in undersea explorations?

3. Plate tectonics refers to:

4. Sir Isaac Newton wrote "Mathematical Principles of Natural Philosophy," which explains his laws of what?

5. Scientists are aware of at least how many galaxies in the universe?

(see the answer key)

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