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| | science -- Britannica Student Encyclopedia |
 | | The term science fiction was popularized, if not invented, in the 1920s by one of the genre's principal advocates, the American publisher Hugo Gernsback. |
 | | It has become common, especially in school curricula, to restrict the usage of the word science to the study of the physical and life sciencesfor example, physics, astronomy, chemistry, biology, anatomy, and geology. |
 | | Included in the Earth sciences are the geological, the hydrological, and the atmospheric sciences, which are concerned respectively with the nature and behavior of the Earth itself, the water, and the air. |
| www.britannica.com /ebi/article?eu=299051 (921 words) |
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