Keeping Warm
Keeping Warm
ISBN: 9781599200279
作者: Peter Riley
出版社: Black Rabbit Books
页数: 32
定价: $ 32.21
装帧: LIB
内容简介
How do batteries work? Why do people sweat when they are hot? What makes things fall to the ground? This series answers all of these questions and more through factual information and practical investigation, including diagrams and data to help interpret results. Each book includes study questions and a "Can you remember the essentials?" summary.