In this educational film, laboratory demonstrations show the effects of moisture and temperature on the growth of molds. Photomicrography reveals the structure of molds: hyphae, mycelium, spore balls, spores. Beginning with spores on a rice culture, time-lapse photography shows the formation of a new colony.
Answers questions about zoo animals and their offspring. Shows physical characteristics and habits of baby monkeys, gnus, kudus, lions, peacocks, alligators and bears.
This educational film from 1970 traces the inheritance of traits such as sex, eye color, height, and weight, showing the role of chromosomes and genes in determining their development.
This educational film shows the development and interdependence of organisms in a pond.
Describes the life of Franz Schubert. Explains the character of his music and conveys the flavor of early 19th century Vienna which influenced his compositions.
Explores the distinctive features of the major rivers of the continent, and discusses their contributions to the farming, recreation, transportation and hydroelectric power of North America.
Presents Handel as a key figure in the development of Baroque music. Illustrates with musical selections his contributions to 18th century music including the oratorio form perfected in 'THE MESSIAH.'
Mozart's life and music are described against a background of the 18th century and of the European cities which influenced his career. Stresses the classic character of his compositions.
This film is a general travelogue about Cuba from 1950.
Demonstrates by use of a glass prism that white light is actually a combination of several colors, which can be reproduced by pigments. Shows how three primary colors can be mixed to make secondary colors and, in turn, intermediate colors. Presents the dimensions of color -- hue, value and intensity -- and illustrates how color combinations create effects and moods.
This educational film from the 1940s teaches the fundamental definitions of, and the physical concepts involved in, volt, ampere, ohm and watt.
Presents a geographic overview of the Rocky Mountain region. Discusses the significant role that this region of natural resources has played in the development of the continent
Illustrates various techniques and household arrangements for caring for the convalescent patient at home. Shows ways of arranging the sick room, making the beds, washing and serving the patient, caring for the thermometer, and removing soiled linens. Pictures the distribution of chores among the family members and demonstrates some necessary precautions to prevent the spread of the illness.
Observes a newly engaged couple as they wrestle with the fears and doubts nurtured by socio-economic differences, family pressures, immaturity, and ambivalent desires. Listens to their secret thoughts and wishes as each tries to cope with the anxiety and frustration-filled situations. States a position for an engagement, long enough to resolve second thoughts and to get to know one another and themselves.
This documentary shows the characteristics and location of major plains and plateaus of North America, and discusses some of the ways in which they have affected man's use of the land.
Follows a case from inception, through the lower courts, to final hearing before the Supreme Court. Shows the Supreme Court as the guardian of constitutional rights. Explains its various functions, powers and scope of jurisdiction.
To show the habitat, life cycle and typical activities of the Barn Swallow.
Explains that different kinds of soil are mixtures of sand, clay, and humus; tells how the weathering of rocks helps make soil; includes simple experiments to show the kind of soil in which different plants grow well.
Explains the reformation in terms of the church, the cultural rebirth brought about by the Renaissance, the emergence of national states and the new interpretations of the scriptures. Devotes special attention to Luther and the Protestant Reformation in Germany.
Physical features such as gulf, peninsula, island, etc, are defined and basic principles of using colors to show elevation are illustrated with models.
