Can you imagine a world without time? Although time plays an important part in our lives, we take it for granted. This work is designed to help children investigate all the wonders of time and clocks. There are 40 projects and experiments, all of which use easy-to-find supplies and materials.
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"How we measure time-both when and how long-is the subject of the many experiments in this small, lively, information-packed volume....For each experiment, there is a brief statement of principle, then four small sections: what you need, what to do, what happens, and why....The focus is on basic discoveries and applied science, from constructing a perpetual calendar or an hourglass to telling time by the stars....There are also fascinating facts that make you think about what you take for granted (Why do clocks count to 12 and not 24?)...style is clear and informal, with a full glossary..."--I>Booklist. 96 pages, 95 b/w illus., 5 3/8 x 8 1/4.
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Zustand: very_good. Zweifel, Frances (illustrator). Gently read. May have name of previous ownership, or ex-library edition. Binding tight; spine straight and smooth, with no creasing; covers clean and crisp. Minimal signs of handling or shelving. 100% GUARANTEE! Shipped with delivery confirmation, if youâre not satisfied with purchase please return item for full refund. Ships USPS Media Mail. Bestandsnummer des Verkäufers OTV.0806942983.VG
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