Interactive simulations for science and maths.
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246 simulations in 28 labs. Each one comes with a guide for students and a teaching kit for teachers: lesson plan, questions for the class, a quiz and the key formulas.
35 simulations in 18 labs · Physics
Modern PhysicsDouble-Slit: Waves & Particles
Dual Nature of Radiation and Matter
Fire photons or electrons at two slits one at a time. Each lands as a single dot — yet the dots build an interference pattern. Turn on a which-slit detector and the fringes vanish.
Class 12 · JEE 12 min
Launch
FluidsBuoyancy
Mechanical Properties of Fluids
Drop blocks of wood, ice, brick and aluminium into water, oil or honey. Read the weight, buoyant force and apparent weight, and see Archimedes' principle hold every time.
Class 9 · Class 11 · NEET 12 minLaunch
MechanicsEnergy Skate Park
Work, Energy and Power
Drop a skater onto a ramp, a loop or a track you bend yourself. Watch kinetic, potential and thermal energy trade places while the total stays constant.
Class 9 · Class 11 · NEET 15 minLaunch
Waves & SoundWave Interference
Wave Optics · Waves
Make water ripples, sound or light from one or two sources. Add a barrier with one or two slits and watch interference and diffraction patterns form on the screen.
Class 11 · Class 12 · JEE · NEET 15 minLaunch
Electricity 2 simulationsStatic Electricity
Electric Charges and Fields
Rub a balloon on a sweater and watch electrons move, then stick it to the wall. Shuffle John's foot on a carpet until he gets a shock from the doorknob.
Class 8 · Class 12 10 minLaunch
Measurement & Vectors 2 simulationsScrew Gauge (Micrometer)
Units and Measurements
Turn the thimble of a screw gauge to grip a wire and read it: main-scale reading plus circular-scale divisions × least count, corrected for zero error. Then solve practice readings.
Class 11 · JEE · NEET 12 minLaunch
Biology · Human PhysiologyThe Cochlea & Audible Range
Neural Control and Coordination (the ear) · Sound
Sweep a tone from 20 Hz to 20 kHz and see where it makes the cochlea's basilar membrane vibrate most: high notes near the oval window, low notes at the apex. Listen, test your own upper limit, and see how it falls with age.
Class 9 · 11 · NEET 8 minLaunch
ElectricityMeter Bridge
Current Electricity
The Class 12 practical: slide the jockey along a 100 cm wire until the galvanometer reads zero, then find the unknown resistance from X = R(100 − l)/l. Record readings, swap R and X, and work out the wire's resistivity.
Class 12 practical · JEE 15 minLaunch
Light & Optics 2 simulationsElectromagnetic Waves
Electromagnetic Waves
An oscillating charge in an antenna sends out electromagnetic waves. Watch the electric and magnetic fields travel outwards together, at right angles to each other and to the direction of travel, then sweep the frequency across the whole spectrum from radio to gamma rays.
Class 12 · JEE · NEET 10 minLaunch
Measurement & Vectors 2 simulationsVernier Callipers
Units and Measurements
Slide the jaw of a vernier calliper to grip a cylinder, a sphere or a tube, read the main scale and the coinciding vernier division, and correct for zero error. Measure outside and inside diameters, then solve practice readings.
Class 11 · JEE · NEET 12 minLaunch
Modern PhysicsPhotoelectric Effect
Dual Nature of Radiation and Matter
Shine light on a metal in a vacuum tube and watch electrons fly off — or not. Change the wavelength, intensity, metal and the anode voltage, find the stopping potential and threshold, and plot current against voltage and K_max against frequency.
Class 12 · JEE · NEET 12 minLaunch
Mechanics 2 simulationsRelative Velocity: Rain and River
Motion in a Plane
Walk through the rain and cross a river to see velocities add as vectors, from the ground and from a moving frame. Find the umbrella angle, the quickest crossing and the way to land directly opposite.
Class 11 · JEE · NEET 12 minLaunch
MechanicsRolling Race Down an Incline
System of Particles and Rotational Motion
Race a solid sphere, a disc, a hollow sphere and a ring down a 3D ramp to see how moment of inertia sets the winner. Lower the friction and watch them start to slip.
Class 11 · JEE · NEET 10 minLaunch
Light & Optics 2 simulationsPrism: Minimum Deviation and Dispersion
Ray Optics and Optical Instruments
Trace a ray through a glass prism, record the deviation at each angle of incidence and plot the i–δ graph. Find the minimum, then split white light into a spectrum.
Class 12 · JEE · NEET 15 minLaunch
Magnetism 4 simulationsCharge in a Magnetic Field
Moving Charges and Magnetism
Send a charge into a magnetic field and see it circle, hop through crossed fields, pass a velocity selector and spiral. The helical path is shown in 3D.
Class 12 · JEE · NEET 15 minLaunch
Mechanics 2 simulationsMotion Graphs & Equations of Motion
Kinematics
Drive a car through a journey and watch its x–t, v–t and a–t graphs draw themselves from the same motion. Read velocity as the slope of x–t and displacement as the area under v–t, build your own journey, and test v = u + at and s = ut + ½at².
Class 9 · Class 11 · JEE · NEET 15 minLaunch
Light & Optics 6 simulationsYoung's Double-Slit Lab (3D)
Wave Optics
Young's experiment on a 3D optical bench: a laser, two slits and a screen, with wavefronts spreading from both slits and the fringe pattern computed on the screen. Drag the screen to change D and a slit to change d; move a probe along the screen to see path difference, phase and intensity; cover one slit with a glass sheet, raise the source slit, switch to white light, fill the bench with water, and give the slits a real width so the envelope wipes out whole orders — then send the light one photon at a time.
Class 12 · JEE · NEET 30 minLaunch
Magnetism 3 simulationsMoving-Coil Galvanometer
Moving Charges and Magnetism
Turn a 3D moving-coil galvanometer with its coil, magnets, core and spring, then convert it into an ammeter and a voltmeter. Work out each shunt and series resistance.
Class 12 · JEE · NEET 15 minLaunch
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135 more labs, every one with its teaching kit: lesson plan, questions for the class, a printable quiz and the key formulas.
Physics · Heat & MatterProThermal Properties of Matter Lab
Thermal Properties of Matter
The whole NCERT chapter as one bench: fifty experiments, each acted out in 3D by a demonstrator in a lab coat — a finger dipped in hot water and snatched back, a hot block lifted off a Bunsen burner with tongs and lowered into a calorimeter, a thermometer carried from bath to bath. Thermometry, gas laws, expansion, water's 4 °C anomaly, specific heat, calorimetry, phase changes and phase diagrams, conduction, convection, radiation, blackbody laws, Newton's cooling, and a design challenge that uses all of it.
Class 7–12 · JEE · NEET 60 minUnlock with Pro
Mathematics · CalculusProGraphing Lab: Functions & Transformations
Functions & Graphs
Thirty-one graphing lessons on one board: plot points and tables, read a graph, meet every standard function (exponential, logarithm, powers, roots, 1/x, x + 1/x, bounded rationals), then master each transformation — f(x) + a, f(x − a), a·f(x), f(ax), reflections, |f(x)|, f(|x|), |y| = f(x) — with the original graph kept in grey and every point animated to its image. Finish by building multi-step targets, guessing equations from graphs, and transforming a function you type yourself.
Class 9–12 · JEE 40 minUnlock with Pro
Chemistry · Atomic StructureProAtomic Structure Lab
Structure of Atom
Thirty-one experiments covering the whole chapter, in the order it is taught for JEE Main and Advanced: Thomson's atom and why it cannot turn an α-particle back, Rutherford's gold foil with real hyperbolic paths, the cathode-ray tube and Thomson's e/m, canal rays, why each model fails; c = νλ, the electromagnetic spectrum, Planck's quanta and photon energies; the photoelectric effect with threshold, work function, stopping potential and Einstein's equation; Bohr's postulates, radius–energy–speed, the hydrogen spectrum, emission and absorption, the five series and any transition's wavelength; de Broglie waves, electron diffraction and 2πr = nλ; and orbitals drawn from hydrogen's real wavefunctions — orbit vs orbital, the four quantum numbers, counting electrons, s, p and d shapes, nodal planes, radial and angular nodes and the radial probability curve.
Class 11 · 12 · JEE · NEET 45 minUnlock with Pro
Physics · FluidsProFluid Mechanics Lab
Mechanical Properties of Fluids
Twenty-five experiments from density and pressure to JEE Advanced: pressure with depth, the hydrostatic paradox, Pascal's law, barometers and manometers, the force on a dam gate, Archimedes and floating, layered liquids, surface tension and capillarity, streamlines, continuity, Bernoulli, the Venturi meter, Torricelli's jets, ideal-flow lift on an aerofoil, viscosity, Stokes' law, Poiseuille, the Reynolds number, drag beyond Stokes, real pipes with pumps, combined manometer systems and a challenge builder. Every model states its assumptions and warns when it stops applying.
Class 9–12 · JEE · NEET 45 minUnlock with Pro
Mathematics · GeometryProAngles Lab: Learn Angles Step by Step
Lines & Angles
Every activity in GeoGebra's “Learn Angles” collection, rebuilt as 25 step-by-step labs: find the parts of an angle under a magnifying glass, name angles with letter tiles, spot acute, right, obtuse and straight angles in a 3D room where a clock, scissors, a laptop, a door and a book move by themselves, measure and draw with a protractor you drag and turn (with the step-by-step placement animated), play the angle-sense and hot-and-cold games, add adjacent angles, slide complementary and supplementary pairs together, spin vertical angles, explore the eight angles where a road crosses two parallel roads, find x, tear the corners off a triangle, split polygons into triangles, wrap radius-long strings round a circle, and convert degrees and radians. Each practice question allows three CHECKs, gives a hint after the second and the worked solution after the third.
Class 5–11 · JEE Main 60 minUnlock with Pro
Physics · MechanicsProWork, Energy & Power Lab
Work, Energy & Power
Twenty-four experiments from "what counts as work" to JEE Advanced: work and its sign, kinetic and potential energy, force–position graphs, power and efficiency, springs, conservative forces, potential-energy curves and equilibrium, friction, pulleys and system boundaries, the vertical loop, a 3D rocket, two blocks and a spring, release protocols, collisions, machines, spring networks, moving surfaces, a 3D saddle, a trap detector and a challenge arena. All 121 questions of Edukul's work–energy question bank are built in, each with a "Show me".
Class 6–12 · JEE 40 minUnlock with Pro
Mathematics · Coordinate GeometryProEllipse Lab
Conic Sections
Twenty interactive modules on x²/a² + y²/b² = 1, from the two-pin definition to polars and the director circle. Explore, predict, derive and practise JEE problems.
Class 11 · JEE Main · JEE Advanced 30 minUnlock with Pro
Physics · MechanicsProCentre of Mass Lab
System of Particles and Rotational Motion
Twenty experiments on one centre-of-mass engine, from two beads on a rail to JEE Advanced: drag particles in 1D, 2D and 3D; balance a metre rule; hang a plate from its holes and watch the plumb lines cross; semicircular wires, plates and hemispheres; a triangle with draggable corners; rods of varying density; plates with holes as negative mass; then the motion of the centre of mass — internal springs, collisions in the centre-of-mass frame, a tumbling throw, a bursting shell, walking on a plank, the ballistic pendulum, binary orbits, a chain sliding off a table, a block on a free wedge, a three-fragment explosion and jumping off a trolley.
Class 7–12 · JEE · NEET 45 minUnlock with Pro
The whole library
Across Physics · Chemistry · Mathematics · Biology — and it grows every week.
- Simulations
- 810
- Virtual labs
- 163
- Chapters covered
- 61
- Subjects
- 4