Por Que Cambian Las Estaciones
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✎ Suggest a correctionA Spanish language film. Uses animation to demonstrate that the yearly seasonal cycle is caused by the cyclical change in the tilt of the earth's axis relative to the sun. Explains temperature changes and seasonal differences between the Northern and Southern hemispheres.
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- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, year, creator, length, format, sound, description
- 16mm Filmography (legacy record) — catalog record
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