Jim Clark - Chemguide

“If you add a small piece of sodium to a trough of water…” he would write, “here is what you will see. And here is why. Don’t skip this bit, or the next bit won’t make sense.”

He didn’t want donations. He didn’t want a YouTube channel. He politely refused interview requests. “The site is the work,” he’d say. “If it helps, that’s enough.” jim clark chemguide

Jim Clark never set out to become a global teacher. In the 1970s and 80s, he was just another dedicated chemistry teacher at a secondary school in the north of England, patiently scrawling equations on blackboards and trying to convince teenagers that moles weren’t just furry animals. “If you add a small piece of sodium