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Discusses the political history of Brazil and her relations with the U.S. Considers Brazilian art, economic problems and potentialities, and the role of U.S. business in Brazil. A photo series pre...
Tells the story of changes which have taken place in home implements. Shows an early vacuum cleaner, phonograph, washing machine, butter churn, and candle mold.
While most chemical reactions take place almost immediately, there are some which can be made to occur after a timed delay. These are the so-called clock reactions. By varying the temperature or co...
Uses laboratory experiments to explain properties of crystals and glass. Tell how crystals are formed and demonstrates crystallization taking place. Discusses glass, its formation, and how it dif...
Uses laboratory experiments to explain the properties of carbon and its compounds. Discusses the three natural forms of carbon: amorphous, graphite, and diamond. Demonstrates the properties of carb...
Explains the difference between scientific and non-scientific endeavor. Examines various areas such as flying saucers, astrology, and weather predictions to point out how these problems are approac...
Presents two version of an automobile-pedestrian accident from which a law action develops. Shows first the accident as seen through the eyes of the victim, 11-year-old Judy Martin; then the versio...
A frog's tongue is fastened to the front of his mouth. A frog can catch flies while jumping. Frogs eat flies. Dora and Fignewton use the felt-board technique to tell the story of Freddy Frog who fo...
Sectional repetition is the exact repetition of a complete section or part of a composition immediately after its first presentation. Music and architecture are the only arts in which this is found...