Start Here — Beginners Welcome
Never studied chemistry or physics before? These videos are your launchpad. Friendly, clear, and designed to hook you from the very first minute.
A perfect starting point. CrashCourse explains what chemistry is, why it matters, and gives you the big picture before you dive into anything detailed.
Your first physics lesson! Dr. Shini explains how physics describes the world with numbers. Displacement, velocity, and acceleration — the foundation of everything that moves.
Chemistry — From Atoms to Reactions
Sorted by topic. Watch in order for a structured journey, or jump to whatever you're studying right now.
- What is an Atom? — CrashCourse ↗VIDEO
- Protons, Neutrons & Electrons — Khan Academy ↗VIDEO
- The Periodic Table Explained — CrashCourse ↗VIDEO
- Atomic Structure Revision Notes — BBC Bitesize ↗READ
- Ionic vs Covalent Bonds — Tyler DeWitt ↗VIDEO
- Metallic Bonding — Khan Academy ↗VIDEO
- Bonding Practice Questions — Khan Academy ↗PRACTICE
- Types of Chemical Reactions — CrashCourse ↗VIDEO
- Balancing Equations — Tyler DeWitt ↗VIDEO
- Stoichiometry Basics — Khan Academy ↗VIDEO
- Moles & Avogadro's Number — ChemGuide ↗READ
- Stoichiometry Problem Set — Khan Academy ↗PRACTICE
Why is the periodic table arranged the way it is? This video cracks the code — groups, periods, metals, non-metals and why every element has its own personality.
Tyler DeWitt explains how atoms link together to form molecules and compounds — with brilliant visual analogies. Makes hard things simple.
An essential full review of core chemistry concepts — atoms, molecules, compounds, mixtures, the mole and more. Great for revision before a test or exam.
Everything you need — pH scale, strong vs weak acids, neutralisation reactions, and real-world examples like stomach acid and baking soda.
How do batteries work? What is oxidation and reduction? This video ties electrochemistry to real-world technology and explains the electron transfer that powers your phone.
How did scientists figure out what atoms look like if nobody could see them? The detective story of atomic theory — from Democritus to the electron cloud.
Physics — Forces, Energy & the Universe
Physics isn't about memorising equations — it's about understanding why the universe behaves the way it does. These videos make that journey irresistible.
- Displacement, Velocity & Acceleration — CrashCourse ↗VIDEO
- Newton's Three Laws of Motion — Physics Classroom ↗VIDEO
- Drawing Free Body Diagrams — Khan Academy ↗VIDEO
- Friction, Normal Force & Tension — Physics Classroom ↗READ
- Forces & Motion Problem Set — Khan Academy ↗PRACTICE
- What is Energy? — Veritasium ↗VIDEO
- Kinetic & Potential Energy — CrashCourse ↗VIDEO
- Work & Power Calculations — Khan Academy ↗VIDEO
- Energy Conservation Practice — Khan Academy ↗PRACTICE
- Electric Current & Circuits — CrashCourse ↗VIDEO
- Ohm's Law Explained — Khan Academy ↗VIDEO
- Magnets & Magnetic Fields — Veritasium ↗VIDEO
- Circuit Analysis Problems — Khan Academy ↗PRACTICE
Inertia, F=ma, and action-reaction — Newton's laws govern everything from a falling apple to a rocket launch. All three click with vivid real-world demos.
Veritasium explores one of the most fundamental — and surprisingly slippery — concepts in all of science. Kinetic, potential, thermal, chemical: what does "energy" actually mean?
Demystifies electricity from the ground up. Understand circuits, what voltage actually means, and why Ohm's Law is one of the most useful equations in physics.
From the sound of a guitar to the light from a star — wave physics underlies almost everything. Transverse vs longitudinal, frequency, amplitude, and wavelength explained.
Does a heavier object fall faster? Galileo dropped two balls from the Tower of Pisa — and the answer surprises most people. A mind-bending look at gravity and air resistance.
An accessible intro to the weirdest branch of physics. Double-slit experiments, superposition, wave-particle duality — real phenomena that will flip your understanding of reality.
The Best Free Science Websites
Gold-standard platforms used by students and teachers worldwide. All free, all brilliant.
World-class video lessons, practice exercises and progress tracking for chemistry and physics — completely free. One of the best learning platforms ever built.
Run virtual science experiments right in your browser! Built by the University of Colorado — simulate atom building, circuit design, wave interference and more.
Concise, exam-focused revision notes for chemistry and physics. Perfect for quick reviews before a test. Includes quizzes, videos, and worked examples.
Deep, clear written explanations of virtually every chemistry topic. Excellent for when you need more depth than a short video and want to really understand the theory.
One of the most watched educational YouTube channels ever. Their chemistry and physics playlists are packed with high-quality animated lessons that make complex ideas feel easy.
An incredible computation engine — type in any chemistry or physics question and get step-by-step solutions. Great for checking your working and understanding how problems are solved.
More Brilliant Educators to Follow
Subscribe to these channels and your YouTube homepage becomes your best science teacher.
Beautiful animation meets deep science. Kurzgesagt explores the biggest questions — from particle physics to black holes — in a way that gives you genuine goosebumps.
Derek Muller's channel is legendary for turning physics into storytelling. Every video challenges a misconception and leaves you seeing the world differently. Highly addictive.
Professor Martyn Poliakoff and team have made a video about every single element — complete with real experiments. Chemistry at its most joyful and explosive!