The wet lab, simulated.
Pipette reagents, tune temperature, pH and concentration, then let the rules engine score your protocol with the same formulas your instructor uses.
- 3
- Guided experiments
- 20+
- Automated checks
- 2
- Languages
Bench
Drag a reagent from the shelf onto the bench, then set its volume or mass.
Variables
Rules-engine grading · Henderson–Hasselbalch · Arrhenius · Logistic growth
Badges
Scored 100% on an experiment.
Language
English and Turkish today. Spanish, French, German, Arabic and Mandarin are next — all text lives in a single language file.
Experiment
PCR master mix
Assemble a 50 µl PCR reaction with a balanced primer pair and a correct annealing temperature.
Dilution: C_final = (C_stock × V_reagent) / V_total
Arrhenius: k = A·e^(−Ea/RT)
Phosphate buffer preparation
Mix weak acid and conjugate base to hit pH 7.40 using the Henderson–Hasselbalch equation.
Henderson–Hasselbalch: pH = pKa + log₁₀([A⁻]/[HA])
Bacterial growth curve
Inoculate a culture and pick conditions that maximise logistic growth after 8 hours.
Logistic growth: N(t) = K / (1 + ((K−N₀)/N₀)·e^(−rt))
Arrhenius: k = A·e^(−Ea/RT)
Ready to run your first protocol?
Free forever for basic experiments. Upgrade whenever your coursework demands it.
- 3 guided experiments
- Core rules-engine feedback
- Shareable completion certificates