big and small这首幼儿英语儿歌适合幼儿园的小朋友，歌词简单易懂，节奏比较慢，孩子容易学。歌曲是mp4格式，可以下载。
big and small歌词：
They're big,They're big,
They're small,They're small,
Big and small,Big and small,
They are big,They are small.
It's heavy,It's heavy,
It's light,It's light,
Heavy and light,It's light,
It is heavy,It is light.
