Infographic for active vs passive voice. A helpful infographic from Your Dictionary. Perfect for the classroom! I like that this doesn't make passive voice seem like the be all that end all in composition.
What about Fear of water? Phobias: xenophobia definition is a bit simplistic; yes 'strangers' but also more towards the fear of foreigners. Usually, used socially and culturally than just 'strangers' but I digress.