内容简介
QuestionssuchasWhatcausesdayandnight?Whydoesthemoonlookdifferentondifferentnights?Isthesunastar?andHowmanyplanetsarethere?areansweredinthisbookforcuriouschildren.Fulloffactsabouttheearth,themoon,thesun,thestars,thegalaxy,andtheotherplanets,thisinformativepicturebookcontainsactivities,acartoon,apoem,afoldoutpage,andaminiquiztomakeyounglearnersrealexperts