
People have been observing the northern lights for thousands of years. The ancient peoples thought the lights could mean the coming of war; scientists today know the lights are natural occurrences. Readers learn what causes the aurora borealis in engaging and age-appropriate language. Stunning photographs of the colorful phenomenon enhance science content, while fun fact boxes add even more captivating information.
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语言 英语 ● 格式 PDF ● 网页 24 ● ISBN 9781433970306 ● 出版者 Gareth Stevens Publishing LLLP ● 发布时间 2012 ● 下载 3 时 ● 货币 EUR ● ID 8665770 ● 复制保护 Adobe DRM
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