Even More of Janice VanCleave's Wild, Wacky, and Weird Earth Science Experiments

【電子書籍なら、スマホ・パソコンの無料アプリで今すぐ読める！】

In a series of fun and involving hands-on earth science experiments, kids learn how crystals and metamorphic and sedimentary rocks form, why seismic waves move more slowly through sand, the effect of rain on hills with and without ground cover, the effect of acid on statues, and how freezing water causes rock movement. They will also determine and demonstrate how rain affects topsoil, what amount of pressure is required to fold the Earth’s crust, how a gentle breeze can move heavy objects, and how air pressure can be used to create a spraying fountain. Featuring color illustrations and safe, simple step-by-step instructions, Janice VanCleave again shows just how much fun science can be.画面が切り替わりますので、しばらくお待ち下さい。
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