Students watch a scientific experiment during the National Science Popularization Day held in Baohe District of Hefei City, east China's Anhui Province, Sept. 20, 2020. A series of science popularizing events on popular science reading, health, public safety, and water conservation are being held nationwide on the occasion of the National Science Popularization Day which will last until Sept. 25. [Xinhua/Liu Junxi]
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A student observes a wastewater treatment experiment during the National Science Popularization Day held in Baohe District of Hefei City, east China's Anhui Province, Sept. 20, 2020. A series of science popularizing events on popular science reading, health, public safety, and water conservation are being held nationwide on the occasion of the National Science Popularization Day which will last until Sept. 25. [Xinhua/Liu Junxi]
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Students experience a liquid layering experiment during the National Science Popularization Day held in Baohe District of Hefei City, east China's Anhui Province, Sept. 20, 2020. A series of science popularizing events on popular science reading, health, public safety, and water conservation are being held nationwide on the occasion of the National Science Popularization Day which will last until Sept. 25. [Xinhua/Liu Junxi]
(Source: Xinhua)