Move from atom identity and probability to molecular machinery and familiar materials. Keep each scale and model in view.
Interactive explorationChange particle counts, pin the differences, and discover what names an element. Then prepare one-electron hydrogen states, collect possible position outcomes and match energy gaps to light.
Interactive explorationGive water an energy budget. Watch its temperature and phase masses, catch a melting plateau, compare two starting states and inspect an open ice structure.
Interactive explorationCompare a hundredfold difference, transfer a tiny aliquot, turn a virtual burette and uncover why a weak acid and a strong acid reach different pH values at equivalence.
Interactive explorationTake apart a human ribosome, follow a message three letters at a time, then change a DNA base and discover what the peptide does.
Interactive explorationConnect a realistic module to a virtual load, look inside a silicon cell, and build a day’s energy from changing light and time.
Interactive explorationLook through a phone, separate a battery’s layers, and trace two different journeys. One happens inside the cell. The other powers the world outside.
Interactive explorationOpen a house wall. Swap its added layer, make it thicker, and reverse the temperatures to see why insulation helps in winter and summer.
Take these steps at your own pace. Your place is not saved as account progress or scored.