The Earth: Resources In The Crust (1960)
Surveys the major useful organic and mineral substances that are found in the earth’s crust. Classifies the resources as the
The Grasshopper: A Typical Insect (1955)
Shows the body structure of the grasshopper and explains that its structure exemplifies the basic characteristics of all insects. Presents
The Nature Of Heat (1953)
Explains that heat is the energy of the motion of molecules. Experiments are used to demonstrate that heat is transferred
The Human Body: Reproductive System (1959)
Uses animation and photomicrography, including fertilization of a human ovum, to present a clear and objective description of the human
The Panama Canal (1958)
Traces the history of the Panama Canal, explaining how it operates and discussing its significance to world transportation. Includes scenes
The Rhine: Background For Social Studies (1959)
An overall view of the significant influence of the Rhine River throughout Europe. Traces its historical importance, from its role
The Story Of Our Money System (1958)
Traces the evolution of the unified money system from the ancient practice of bartering to the convenient forms of exchange
Transportation In The Modern World (1957)
Presents a survey of transportation in today’s world, showing the importance of various types of transportation to industry, travel, and
Verbs: Principal Parts (1960)
Uses animation to show that the present, past, future, and perfect tenses of regular and irregular verbs are based on
United States Expansion: Settling The West (1853-1890)
Explains that in the period between 1853 and 1890 the largest frontier region of the West was settled. Uses dramatized
Weather: Why It Changes (1962)
Presents a simple and clear explanation of how and why changes in the weather occur. Locates the air masses which
Verbs: Recognizing And Using Them (1960)
Uses animation to show how to identify the complete subject and the complete predicate of a sentence. Explains how to