Is it true when you toch water you turn into a mermaid?

No. It is not true. Mermaids are not real and people can not become mermaids (think how messy that would be). I hope you have taken a bath in your life or gone swimming did you turn into a mermaid? You have touched water and didn't become a mermaid. It is all make believe. Think. If you want to pretend to be a mermaid buy a mermaid costume.