Chemistry has a reputation for being difficult. For many students, it's a subject filled with equations to memorise, definitions to learn and facts that seem disconnected from the world around them.
But chemistry was never meant to be like that.
At its heart, chemistry is the story of everything around us. It explains why stars shine, why metals rust, why medicines heal, why food cooks and why life itself is possible. Every object we touch, every breath we take and every material we use is part of that story.
The Helpful Chemist was created with one simple aim: to tell that story clearly.
My background
I'm Dr Richard Willis, a chemist, educator and science communicator. I studied Chemistry at Imperial College London, and for the last 20 years I've had the privilege of teaching chemistry to thousands of students in the classroom.
Throughout that time, I've discovered that students rarely struggle because chemistry is too difficult — they struggle because courses rarely have the time to explain why things happen before asking students to remember what did happen.
Throughout my years in the classroom, I was always searching for resources that would inspire students to love chemistry rather than simply revise it. I wanted something academically rigorous, beautifully produced and genuinely engaging — something that explained ideas instead of asking students to memorise them. Eventually I realised that if I wanted that resource to exist, I'd have to build it myself.
My philosophy — how The Helpful Chemist works
Rather than relying on memorisation, every lesson here begins with understanding. The videos combine academic accuracy with the style of a modern science documentary, using cinematic visuals, historical stories, real-world examples and carefully designed animations to reveal the ideas that connect the whole subject.
The videos are designed to work by themselves, or to be broken down and used in classrooms as part of traditional lessons. They are supported with expertly designed worksheets, with answers, to allow students to check what they know before moving on.
I've been fortunate to teach in a country where education is available to everyone. I also know that many schools face enormous budget pressures, and many students around the world don't have access to the resources they deserve. That's why everything here is free. If you're learning here — or on YouTube — it always will be.
So, whether you're preparing for GCSE examinations, teaching chemistry in school, supporting someone else's learning or simply fascinated by the science that shapes our world, I hope you'll find something here that inspires you.
“Chemistry isn't just another school subject. It's the story of matter itself. And once you understand that story, the facts begin to make sense.”
A few promises
What you can expect here
- Every lesson is carefully designed around the content shared by the major UK GCSE exam boards, and I'll continue updating the course as specifications evolve.
- Although I can't provide individual tutoring through the website, I do read comments and answer questions on YouTube whenever I can.
- I'm not a chatbot. If you email me, you'll get a reply from me, personally, within a few days.
In summary
Four things worth remembering
- 1.I'm a real person, a chemistry teacher, not a company. I've taught this course for twenty years.
- 2.Everything here is free, and always will be. No subscriptions, no accounts.
- 3.Over time the site will cover the full GCSE Chemistry specification, but I'm not an official resource endorsed by any exam board.
- 4.While this isn't tutoring, my hope is that it will grow your interest in the subject, inspire you to find out more and, just maybe, become a chemist who changes the world.
Where to go from here
Whichever route makes sense for you.