(CNSPHOTO)

Children at a kindergarten in Suzhou, Jiangsu Province, learn to make Qingming cake on April 2. Green Qingming cake, made of sticky rice and wormwood juice, is a special offering made to worship ancestors. During the period of the traditional Qingming Festival, or Tomb-sweeping Day, which falls on April 5 this year, Chinese people mourn their ancestors and other deceased relatives.