WhyWhyWhy? |十万个为什么*Simplified Chinese + Partial Hanyu Pinyin*age 4 - 9 yrs old

Why sparrows only hop and not walk? Why cat can still see clearly in darkness? Why is the hot spring water hot? Where does the sand from desert come from? Where do flowers come in different colours? Why are our fingers of different length? Why do we use red to indicate stop or danger? Why are all manhole covers round? This set consists of 4 books that help to provide answers to children most commonly asked questions.

4 titles in the set:

生命与常识 (Life and General Knowledge)

动物世界 (Animal Kingdom)

植物乐园 (Plant Kingdom)

天文与地理 (Astronomy & Geography)