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摘要
摘要
The thirteen-year-old author presents twenty-nine experiments using household chemicals and materials that demonstrate a physical or chemical principle while seeming like tricks.
摘要
The thirteen-year-old author presents twenty-nine experiments using household chemicals and materials that demonstrate a physical or chemical principle while seeming like tricks.
评论 (4)
《学校图书馆杂志》(School Library Journal)书评
Gr 4-6-- While all the experiments (or demonstrations) here are available in other books, the fact that this was written by a 13-year-old boy gives it extra significance. Chemistry books tend to give reviewers the cold cobbles, as nothing is more certain than the fact that even if they are larded with warning, a tidy percentage of users will bleep over them, hurrying to the ``interesting'' parts. This book does have warnings, but a number of them are presented in an inconsistent way. A caution on isopropyl alcohol on one page is not given about rubbing alcohol on another, although it, too, can burn eyes and mucous membranes, and is toxic if ingested. Warnings about household ammonia are given for some experiments, but while the warning paragraph is included at the bottom of an experiment involving red cabbage, the word ``caution'' has been omitted next to ammonia in the equipment list. Also disturbing are the directions for a Mystical Mothball Tree, which allow for the use of a non-heat resistant glass jar or beaker and heat, although small print does warn about the possibility of shatter. Cautions are given about the toxicity of mothflakes (although it is not clear whether this applies to mothflakes made of napthalene or camphor), but the fumes can be irritating when either is exposed to heat, despite instructions given for in-kitchen ventilation. Also, the warnings, cautions, and special instructions are at the end of the experiments rather than at the beginning, making them pointless for young scientists who do the experiment as they read along. With these caveats in mind, remember that other activities included are fun, safe, and demonstrate interesting scientific principles. Kramer's enthusiasm for his subject is obvious and contagious, and his writing skills are well advanced. While one might feel a tad hesitant about this title, there is also a sense of anticipation about his next book. --Patricia Manning, Eastchester Public Library, NY (c) Copyright 2010. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.
《儿童读物杂志》(Horn Book)书评
A set of good experiments, generally well described, interesting and instructive. There are one or two minor slips in chemical formulae, which readers can check for themselves; some of the diagrams are unclear. Bibliography, index. (c) Copyright 2010. The Horn Book, Inc., a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.
《学校图书馆杂志》(School Library Journal)书评
Gr 4-6-- While all the experiments (or demonstrations) here are available in other books, the fact that this was written by a 13-year-old boy gives it extra significance. Chemistry books tend to give reviewers the cold cobbles, as nothing is more certain than the fact that even if they are larded with warning, a tidy percentage of users will bleep over them, hurrying to the ``interesting'' parts. This book does have warnings, but a number of them are presented in an inconsistent way. A caution on isopropyl alcohol on one page is not given about rubbing alcohol on another, although it, too, can burn eyes and mucous membranes, and is toxic if ingested. Warnings about household ammonia are given for some experiments, but while the warning paragraph is included at the bottom of an experiment involving red cabbage, the word ``caution'' has been omitted next to ammonia in the equipment list. Also disturbing are the directions for a Mystical Mothball Tree, which allow for the use of a non-heat resistant glass jar or beaker and heat, although small print does warn about the possibility of shatter. Cautions are given about the toxicity of mothflakes (although it is not clear whether this applies to mothflakes made of napthalene or camphor), but the fumes can be irritating when either is exposed to heat, despite instructions given for in-kitchen ventilation. Also, the warnings, cautions, and special instructions are at the end of the experiments rather than at the beginning, making them pointless for young scientists who do the experiment as they read along. With these caveats in mind, remember that other activities included are fun, safe, and demonstrate interesting scientific principles. Kramer's enthusiasm for his subject is obvious and contagious, and his writing skills are well advanced. While one might feel a tad hesitant about this title, there is also a sense of anticipation about his next book. --Patricia Manning, Eastchester Public Library, NY (c) Copyright 2010. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.
《儿童读物杂志》(Horn Book)书评
A set of good experiments, generally well described, interesting and instructive. There are one or two minor slips in chemical formulae, which readers can check for themselves; some of the diagrams are unclear. Bibliography, index. (c) Copyright 2010. The Horn Book, Inc., a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.