Why do baseballs have stitches? Why do football have an oblong shape? How does a Ping-Pong ball change if you fill its center? Through these fun, step-by-step experiments, you will discover the science behind the sports that you play. Take home a trophy for the science fair this season!
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语言 英语 ● 格式 PDF ● 网页 128 ● ISBN 9780766070271 ● 出版者 Enslow Publishing, LLC ● 发布时间 2015 ● 下载 3 时 ● 货币 EUR ● ID 8663846 ● 复制保护 Adobe DRM
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