In this video Jojo shows how easy it is to make rocket fuel and bleach from water and salt. This video demonstrates electrochemistry and electrolysis of water and salt.
Solar chlorine bleach generator
https://www.youtube.com/watch?v=E98JBaFHJPQ
Playlist
https://www.youtube.com/watch?v=RZRuF3ebu6w&list=UUaLhKqb6jy1_2XcpPahEPNw