Subject: 20TH-CENTURY SCIENCE

(e.g., 1901: He received the first trans-Atlantic radio signal. Answer: Guglielmo Marconi.)

Freshman Level

1. 1903: He made a heavier-than-air flight with a gasoline engine.

2. 1905: He formulated his theory of special relativity.

3. 1945: These two Japanese cities were hit with atomic bombs.

Graduate Level

4. 1925: In this trial, a teacher was found guilty of teaching evolution in class.

5. 1946: His "The Common Sense Book of Baby and Child Care" was published.

6. 1952: He developed and tested the first polio vaccine.

Ph.D. Level

7. 1913: He presented his quantum model of the atom.

8. 1924: He announced that the Milky Way is just one of many such galaxies.

9. 1996: This adult sheep was successfully cloned.

Answers:

1. Orville Wright.

2. Albert Einstein.

3. Hiroshima and Nagasaki.

4. Scopes Trial.

5. Dr. Benjamin Spock.

6. Jonas Salk.

7. Niels Bohr.

8. Edwin Hubble.

9. Dolly.

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