How do cool temperatures affect the activity of a fish? Do earthworms prefer to live in light or darkness? Do weeds interfere with the growth of other plants? Readers will find the answers by doing the fun and simple experiments in this book. Many ideas for science fair projects are also included.
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语言 英语 ● 格式 PDF ● 网页 160 ● ISBN 9780766054271 ● 出版者 Enslow Publishing, LLC ● 发布时间 2010 ● 下载 3 时 ● 货币 EUR ● ID 8663427 ● 复制保护 Adobe DRM
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