推荐指数： ★★★

可借数量： 1

所需押金：免押金

租借价格：5.00元/周

市场售价：42.00

所在架号：111

What makes day and night/Franklyn M. Branley; illustrated by Arthur Dorros——New York：Harper Collins Publishers，2015，索书号：N49/865（馆藏地点：中山四路外文馆22区）

On earth, we have both day and night, in just twenty-four hours, thanks to the quick rotation of our planet . Using a lamp as the sun and yourself as the earth, see why we have day and night!

地球自转一周需24小时，于是人类有了白天和黑夜。做一个小实验，用灯光比作太阳，我们比作地球，自转一圈，就可以明白白天和黑夜的来源。

适合年龄：5-8岁

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