A special lecture kicked off Thursday afternoon at China's space station, given by the Shenzhou-13 crew members to students on Earth.
In the last experiment, taikonaut Wang Yaping performed putting a yellow effervescent tablet into a water ball colored by blue ink.
As it was conducted in space, the bubbles generated by the tablet cannot break the waterfall, demonstrating how water behaves in space.
Produced by Xinhua Global Service
