What Makes a Magnet?
Franklyn M. Branley 著, True Kelley 绘
出版社:HarperCollins
出版时间:1996-07
ISBN:9780064451482
词汇量:1105
页数:32
类别:科普百科,数理化
虚构:非虚构
开本:16
阅读年龄:阅读年龄 7-8岁 (31.0%), 8-9岁 (19.0%)
Will a magnet pick up a paper clip or a feather?The answer is, just the paper clip. Magnets only pick up things that contain bits of iron. In this new addition to the Let's-Read-and-Find-Out Science series, veteran author Franklyn Branley explains the properties and behavior of magnets. True Kelley's charming illustrations will entertain readers as they discover for themselves what makes a magnet. Hands-on activities include making a magnet and compass.