Learn the universe from the atom up.
Physics, chemistry, maths, time and space. Every idea comes with an animation you can play with, a quick 5-mark check, and a path that remembers where you are.
Five subjects. One path each.
Every subject is a path of modules, and every module is five levels and an exam you have to pass to move on.
- Physics8 modulesHow things move, fall, shine and spark, all the way to quantum physics and relativity.
- Chemistry8 modulesWhat everything is made of and how it changes, all the way to quantum chemistry.
- Mathematics25 modulesFrom counting to calculus, proof, number theory, linear algebra and the unsolved frontiers: everything a mathematician learns.
- Time20 modulesClocks, calendars, deep time and relativity: everything about time.
- Space20 modulesThe night sky, the Solar System, stars, galaxies and the whole universe.
Maths you can move.
Every one of these is a real lesson animation. Drag the sliders, change the numbers, watch the maths answer back.
Drag the angle. Sine is the height, cosine is the width.
Slide along y = x². The slope of the touching line is the derivative, 2x.
Every lesson is something you can play with.
No sign-up needed for this bit. Pick a demo and poke it.
Open this lessonLet the skater roll and watch energy swap between the bars.
Total: 1588 J. With no friction, the total never changes. Kinetic and potential energy just swap back and forth.
The fact machine
Pull the lever for a random fact, with the reason it is true. The full machine also turns your birthday into facts about your life and takes any number apart.
Every fact comes with the reason it is true. The machine won't repeat a fact until it has used every one in that topic.
Open the full fact machinePick a topic, or leave it on All, and pull the lever.
Every fact comes with the reason it is true. The machine won't repeat a fact until it has used every one in that topic. Loading the facts…
Labs you can break
Free-play tools where you build, launch and test things yourself.
- Can you solve it?Ten very hard problems for every subject, with hints and worked solutions.
- What if…?What if Earth stopped spinning? Wild questions, real science, step by step.
- ParadoxesTime travel, infinite hotels and Schrödinger's cat, each as a story and an animation.
- Rocket labDesign a multi-stage rocket, then fly it to the Moon.
- Circuit labWire cells, bulbs and switches with a live Ohm's law solver.
- Chemistry benchMix acids, metals and indicators, safely.
- Optics benchBend light with lenses, mirrors and prisms.
- Molecule labJoin any of the 118 elements and name what you make.
- How it worksCars, F1 cars and race circuits, part by part.
How Atomica works
- 1Watch it moveEvery idea starts as an animation, in plain words first and the deep version when you want it.
- 2Check yourselfEach lesson has a 5-mark quick check, and each level ends in a 20-question test. Score 14 to pass.
- 3Pass the moduleFive levels make a module. Pass its exam to unlock the next one. No skipping ahead.
- 4Keep the streakSet a daily goal and keep your day streak going. A little every day beats a lot once a month.
Collect the periodic table
Every module hides one mystery element, picked at random just for you. Pass the module exam to reveal it. No two modules share the same one, so your collection is yours alone.
Questions
Start with one atom.
Pick a subject or two, start from the basics or take the placement quiz, and Atomica remembers where you are.