When I joined a writing group three years ago, I had no idea I would someday start writing about candy experiments. It was just plain luck that one of my fellow writers was a biochemist.
Working on this project, I've been grateful for many connections, including a high school colleague witn a master's degree in chemistry, a nonfiction writer I met through SCBWI, and families who are testing experiments with me.
So make and keep friends for the sake of friendship. You never know where those friendships will lead.