Wei she me fei zao shui neng chui chu pao pao? = Why the soap can produce bubbles? / Huo Yan Qin.

by Huo Yan Qin
Published 2014

Wei she me xing xing hui "zhayan"? = Why the star 'wink'? / Huo Yan Qin.

by Huo Yan Qin
Published 2014

Wei she me yi fu hui mao huo hua? = Why sometimes remove cloth has cracking sound? / Huo Yan Qin.

by Huo Yan Qin
Published 2014

Wei she me ping guo hui bian hei? = Why apple will turn black? / Huo Yan Qin.

by Huo Yan Qin
Published 2014

Wei she me ya zhi hui pai du? = Why the duck know to line up? / Huo Yan Qin.

by Huo Yan Qin
Published 2014

Wei she me chang chang shen chu she tou? = Why dogs are often put cut his tongue? / Huo Yan Qin.

by Huo Yan Qin
Published 2014

Wei she me yao dai yan jing? = Why do we need to wear sunglasses? / Huo Yan Qin.

by Huo Yan Qin
Published 2014

Wei she me shui mu hui zhe ren? = Why the jellyfish stings people? / Huo Yan Qin.

by Huo Yan Qin
Published 2014

Wei she me dian deng pao neng gou fa guang? = Why the bulb can light? / Huo Yan Qin.

by Huo Yan Qin
Published 2014

Wei she me mian hua bu shi hua? = Why the cottton is not a flower? / Huo Yan Qin.

by Huo Yan Qin
Published 2014