Box 15

Produced by Educational Services, Inc. Written by Physical Science Committee.

Professor Byron L. Youtz demonstrates the Franck-Hertz experiment, which was one of the first indications of the existence of internal energy states within the atom. There is an epilogue by James Franck.

Produced by Henry Salomon and NBC New Productions. Written by Henry Salomon and Richard Hanser.

As part of "America Enters the Twentieth Century" series, the film outlines the causes of World War I and touches upon the involvement of the United States in 1917.

Produced by Disney.

A young boy has to sell his beloved, old donkey. He refuses to sell it to unkind people in town but ultimately finds a home for the donkey when Joseph asks to purchase the animal for Mary to ride to Bethlehem.

Produced by Barr Films.

The film, which follows a fictitious family through a difficult day, addresses some of the problems that cause stress and shows how to identify and alleviate stress in daily living.

Produced by CRM Films. Written by Edmond Schan.

The film tells the story of an elderly woman's devotion to tending to a string bean plant, which is her only diversion. Defeat and loneliness are gracefully conquered by her imagination.

Produced by Davidson Films.

This animated adventure story, which introduces the concept of rational numbers to children in primary grades, tells about the visit of the first rational number to a community of natural numbers.

Produced by Stephen Fleishman and distributed by McGraw-Hill.

The film follows the Life Raft Earth demonstration that urges humanity to acknowledge the environmental challenges the world is facing and looks at how San Francisco is addressing these issues through the building of parks and restructuring of urban spaces.

Produced by Stephen Fleishman and distributed by McGraw Hill.

This segment explores the difficulty San Francisco experienced in its effort to roll back its pollution levels to those of 1950.

Produced by Avanti Films.

The film explores the origins of prejudice and illustrates contemporary forms of it.