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The Africans knew
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Tillie S. Pine |
Colorfully illustrated text reveals that African tribes of long ago knew and practiced the techniques of smelting iron, casting bronze, irrigating crops, and making and mixing paints and dyes. |
OL6603855W |
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The Arabs knew
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Tillie S. Pine |
Describes some aspects of Arab culture and knowledge hundreds of years ago which are up-to-date today. Includes related activities. |
OL6603857W |
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Energy all around
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Tillie S. Pine |
Describes the sources and uses of various kinds of energy and the need for energy conservation. |
OL6603862W |
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The Polynesians knew
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Tillie S. Pine |
Describes the seafaring society of the Polynesians long ago and includes instructions for making some of their craft objects. |
OL6603870W |
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Rocks and how we use them
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Tillie S. Pine |
Discusses the location and formation of different kinds of rocks and their ultimate uses to man. |
OL6603871W |
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Sounds all around
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Tillie S. Pine |
Suggests many simple experiments which help explain what happens when sounds are made, how sound travels, what makes sounds high or low in pitch, and what can be done to soften sounds or to hear them… |
OL6603874W |