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.
The Gold Rush, Phoenicia as a sea power, political change in Africa, and the Panama Canal are some of the topics considered in showing how different kinds of maps can be used to gain insights into events and patterns of history.
Pig, hippo, and elephant footage strung together with narration. Elephants were included even though they are not related to pigs.
Shows how common rocks and minerals can be identified by color, texture, hardness, streak and other standard procedures.
Answers questions about zoo animals and their offspring. Shows physical characteristics and habits of baby monkeys, gnus, kudus, lions, peacocks, alligators and bears.
Emphasizes the importance of wearing galoshes, being alert when crossing streets and dressing properly in winter. Also stresses safe sledding, throwing snowballs in proper places and ice skating cautiously.
Shows how the spectroscope, radio and optical telescopes are used to provide information about the origin of comets, meteors and planetoids. Special effects show the meteor shower of 1833, the approach of Halley's comet and the movements of planetoids.
Uses high magnification photography to demonstrate the processes of converting raw fibers into woven cloth.
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.
Provides a basis for appreciating the style and beauty of Leonardo da Vinci's art by examining his famous works. His versatility as an artist, mathematician, anatomist and architect is also pictured.
Shows that the functional basis of our democracy is the election system. Discusses registration, primary and general elections, the impact of television on campaigns and the use of voting machines.
This educational film shows the development and interdependence of organisms in a pond.
Jimmy learns to appreciate his parents when a hand puppet dressed as a jester visits him up in the middle of the night and renders him invisible.
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.'
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.
Uses animation, wave tank, live-action photography, and underwater models to show how waves develop, how coastlines are shaped, and to describe the forces that change the sea bottom.
Contrasts ancient and modern methods of irrigation along the Nile. Discusses the benefits of the dam at Aswan. Shows how the Nile brings fertility to Egypt and serves as a vital artery of transportation.
The issue of popularity, specifically amongst the high school set, is dramatized.
This instructional film shows the three parts of a lever and demonstrates how various levers help to move things more easily, or move them farther and faster.
Shows how Jim and Bob use protractor and ruler to study such figures as rectangles, triangles and circles, and such principles as congruence, similarity and symmetry, in constructing a model porch.
