Free Labs

Chemistry & Physics Labs

Guided lab experiments with step-by-step workflows, animated simulations, and real data collection. All free, all in your browser.

Chemistry

Gas Laws Lab

Explore Boyle's, Charles's, and Gay-Lussac's gas laws with animated particles. Adjust pressure, volume, temperature, and moles to discover relationships experimentally

Chemical Kinetics Lab

Simulate reaction rates with the Arrhenius equation. Adjust concentration, temperature, and catalysts to observe how particle collision frequency and rate constants change

Diffusion & Osmosis Lab

Watch particles move across a semipermeable membrane. Adjust concentrations on each side and observe diffusion, osmosis, and equilibrium with Fick's law calculations

Titration Lab

Simulate acid-base titration with a virtual burette. Watch pH curves develop in real time, find equivalence points, and compare strong and weak acid behavior with indicator color changes

Calorimetry Lab

Mix substances at different temperatures and observe heat exchange over time. Calculate specific heat, compare coffee cup and bomb calorimeters, and model heat loss

Serial Dilution & Standard Curve Lab

Perform multi-step serial dilutions, measure absorbance with Beer-Lambert law, build a standard curve with linear regression, and determine unknown concentrations

Spectroscopy Lab

Shine light through solutions and observe absorption spectra. Explore Beer-Lambert law by adjusting concentration and path length to see how absorbance and transmittance change

Atomic Emission Lab

Select elements and observe their emission line spectra. Explore the Rydberg equation, Bohr model energy levels, and flame test colors for hydrogen and other elements

Chromatography Lab

Simulate paper chromatography with animated solvent front and spot separation. Calculate Rf values, compare polarities, and identify unknown compounds by matching standards

Physics

Thermodynamics Lab

Build PV diagrams with isothermal, adiabatic, isobaric, and isochoric processes. Calculate work as area under the curve and explore Carnot cycle efficiency

Brownian Motion Lab

Track a particle's random walk caused by molecular collisions. Measure mean squared displacement and verify the Einstein relation connecting diffusion to temperature

Heat Transfer Lab

Visualize conduction, convection, and radiation with a temperature heatmap. Compare materials with different thermal conductivities using Fourier's law

Pendulum Lab

Measure pendulum period at different lengths to derive gravitational acceleration. Plot T² vs L, compare small and large angle behavior, and explore planetary gravity presets

Hooke's Law Lab

Hang masses on a spring, measure extension, and find the spring constant from the slope of F vs x. Calculate elastic potential energy and explore spring stiffness

Atwood Machine Lab

Two masses on a pulley system. Adjust mass ratio, observe acceleration, and verify Newton's second law. Compare theoretical and measured values with optional friction

Buoyancy Lab

Drop objects into fluid and observe floating or sinking based on density. Calculate buoyant force, apparent weight, and fraction submerged using Archimedes' principle

Standing Waves Lab

Visualize standing wave patterns on strings and in pipes. Adjust tension, length, and harmonic number to explore nodes, antinodes, and resonance frequencies

Diffraction & Slits Lab

Explore single slit, double slit, and diffraction grating patterns. Adjust wavelength and slit dimensions to see real-time intensity patterns with fringe calculations

Blackbody Radiation Lab

Adjust temperature to see Planck spectral curves shift. Explore Wien's displacement law, Stefan-Boltzmann power scaling, and the ultraviolet catastrophe comparison