About K2 SimLab
I have spent more than twenty years working across physics and chemistry — designing experiments, building instruments, and inventing the things that were needed but not available. K2 SimLab is that same habit turned toward teaching.
Why it exists
Most science simulations on the web are animations. They play the same way each time, and a student who changes a value is really just watching a different pre-recorded clip. That teaches almost nothing about why the result comes out the way it does.
Everything here computes. Trajectories are integrated step by step. Orbital shapes come from the wavefunction. Dipole moments are summed as vectors from real geometry. Type in a value nobody anticipated and the answer is still correct, because no answer was decided in advance.
What that buys you
The working is always visible. Every simulation shows its derivation using your own numbers, laid out in the order you would write it in an exam.
Mistakes are demonstrated. Release a package too early and it visibly falls short. Fit the wrong reagent and nothing happens. That is a better lesson than a red cross.
The awkward corners are the point. Zero error on a vernier scale. Which reactant runs out first. Why subtracting a negative correction makes an answer larger. These simulations exist because those specific things are hard to land on a blackboard.
Who it is for
Class XI and XII students following CBSE or ISC, and the teachers working with them. The content follows the Indian syllabus rather than a foreign board, so the conventions, symbols and expected methods are the ones that will be marked.
How it is built
Each simulation is a single self-contained page. Nothing to install, no plugins, and it keeps working once loaded — which matters when a school connection is unreliable. They run on a phone as readily as on a lab computer.
Requests and bug reports genuinely shape what gets built next. Tell me what would help.