NONFICTION

Geology Is a Piece of Cake

40p. bibliog. charts. diag. photos. Tumblehome Learning. May 2017. Tr $17.95. ISBN 9781943431281.
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Gr 4–8—This geology-meets-cookbook hybrid uses cake as a metaphor for explaining earth science concepts. Coppens covers minerals, rock types, and the rock cycle in some detail. Other earth science topics are discussed briefly, including tectonic plates and the earth's layers. Each time a new concept is introduced, the author includes the follow-up question, "How does this relate to cake?" For instance, a layer cake is like a foliated metamorphic rock because they both have layers. A cake recipe is located at the end of each chapter ("extrusive molten lava cake"). In some places the metaphor works surprisingly well; in others it's stretched quite thin. The information is sound and in general well explained. However, the book's design is unpolished compared with that of similar titles.
VERDICT Though lacking in some areas, this is overall a creative approach to earth science. Large STEM and cooking collections may want to consider.

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