The volunteer team of Handan Water Company implemented the water conservation tutorial class into the curriculum in Sandi Primary School in Handan, North China’s Hebei Province, on March 18, 2019. (Photos: VCG, compiled by Wang Zi)

Volunteers bring interesting nature science and experimental classes to students to encourage children to increase their knowledge about water conservation for the upcoming World Water Day on March 22.

Students observe the water purification process during a water purification experiment in Handan, North China’s Hebei Province, on March 18, 2019.

World Water Day on March 22 is an annual UN observance day that highlights the importance of freshwater and used to advocate for the sustainable management of freshwater resources.