Virtual science labs

120 virtual experiments and school practicals that run in the browser: set up the apparatus, change one variable, take readings and analyse the results. Share any of them with a class link or QR code; students need no account.

Physics

39 labs

Simple pendulum – period, energy and measuring g Physics · Oscillations & Waves Three screens: Intro (one or two pendulums; change the string length, mass, acceleration due to gravity and... Ages 16–17
Hooke's law – springs Physics · Forces & Dynamics Three screens to explore Hooke's law. Intro lets you stretch or compress one or two independent horizontal springs... Ages 15–16
Specific heat capacity – heating different materials Physics · Thermal Physics & Gases The same heat source of power P heats two different materials. Since the heat transferred is Q = m·c·Δt, a material... Ages 17–18
I–V characteristics – resistor, filament lamp, diode and LED Physics · Electricity & Circuits A virtual version of the I–V characteristics practical: a variable d.c. supply, an ammeter in series and a voltmeter... Ages 16–17
Projectile motion – trajectory and air resistance Physics · Kinematics Five screens explore projectile motion: Intro lets you set the launch height, launch angle, initial speed and... Ages 15–16
Collision lab – momentum and kinetic energy in collisions Physics · Energy & Momentum Four screens for exploring collisions. Intro: two balls collide elastically along a line so you can get used to the... Ages 15–16
Measuring the speed of sound – echo timing, two microphones on an oscilloscope, ultrasound in phase Physics · Oscillations & Waves A virtual practical that measures the speed of sound in air in three ways: timing an echo from a wall with a... Ages 16–17
Light meter bench – transparent, translucent and opaque materials, reflection and the inverse square law Physics · Oscillations & Waves A virtual practical with a lamp, a sample holder and a light meter (lux meter). On the Materials screen, shine a... Ages 16–17
AC circuit construction kit – build RLC circuits Physics · Electricity & Circuits Build any circuit by drag and drop from an AC source, batteries, wires, resistors, light bulbs, switches,... Ages 17–18
Thermal equilibrium – dropping a hot object into water Physics · Thermal Physics & Gases Object 1 (metal, water, or ice at 0 °C) with mass m₁ at temperature T₁ is dropped into water of mass m₂ at T₂ inside... Ages 17–18
Spring pendulum – simple harmonic motion Physics · Oscillations & Waves A mass m attached to a spring of stiffness k is pulled out to amplitude A and released. Watch the mass oscillate and... Ages 16–17
Ballistic Pendulum – Measuring a Bullet's Speed Physics · Energy & Momentum A bullet of mass m and speed v embeds in a wooden block of mass M hanging from a light rod of length L. The... Ages 15–16
Air column resonance – measuring the speed of sound Physics · Oscillations & Waves A glass tube holds water and a 256–512 Hz tuning fork vibrates over its open end. Drag the water surface to change... Ages 16–17
Conduction and convection lab – metal rods, layered walls, convection currents Physics · Thermal Physics & Gases Three virtual experiments on heat transfer. A: heat one end of a rod (copper, aluminium, brass, iron, steel or... Ages 17–18
Forced oscillations and resonance – driven spring–mass system Physics · Oscillations & Waves A horizontal spring–mass system is driven by a vibrator that applies a periodic force F = F₀cos(2πft). Students see... Ages 16–17
Boyle's law – isothermal gas compression Physics · Thermal Physics & Gases Pull or push a piston in a sealed cylinder at constant temperature. The measured pressure always satisfies p·V =... Ages 17–18
Charles's law – constant-pressure gas experiment Physics · Thermal Physics & Gases A column of air is trapped in a narrow glass tube by a mercury pellet, and the tube stands in a beaker of water that... Ages 17–18
Measuring g with a simple pendulum Physics · Measurement & Uncertainty Time 1, 10 or 20 oscillations of a simple pendulum with a stopwatch, either by hand or with a simulated experimenter... Ages 15–16
Measuring the coefficient of kinetic friction on an inclined plane Physics · Forces & Dynamics Virtual lab: a block slides from rest down a board inclined at angle α, and a digital timer with two light gates... Ages 15–16
Cooling curves – thermal insulation, Newton's law of cooling and freezing Physics · Thermal Physics & Gases A virtual practical that records temperature against time. A: a beaker of hot water wrapped in cotton wool, bubble... Ages 17–18
Geiger counter lab – absorption of α, β and γ radiation and the inverse-square law Physics · Quantum & Nuclear Physics A virtual practical with a Geiger–Müller tube: measure and subtract the background count, then count α, β and γ... Ages 17–18
Masses and springs – basics Physics · Forces & Dynamics Hang masses on a spring one at a time and measure the extension at equilibrium across three screens: Stretch, Bounce... Ages 15–16
Centripetal force – uniform circular motion on a string Physics · Forces & Dynamics A mass m tied to a string of length R moves in uniform circular motion with angular speed ω (viewed from above). The... Ages 15–16
Moments – principle of moments and couples Physics · Forces & Dynamics A virtual lab with a rod pivoted at its centre and equally spaced holes: drag masses onto holes on either side and... Ages 15–16
Rotational inertia and τ = Iα – turntable lab, angular momentum and rolling Physics · Forces & Dynamics A virtual lab on rotational dynamics. A falling mass on a string wound round a drum turns a rod with two movable... Ages 15–16
Charging and discharging a capacitor – measuring the RC time constant Physics · Electricity & Circuits A virtual lab circuit with a source of EMF E, a resistor R, a capacitor C and a two-way switch K: move K to 1 to... Ages 16–17
Projectile Motion at an Angle Physics · Kinematics Launch an object with initial speed v0 at angle α to the horizontal, under gravitational acceleration g. Watch the... Ages 15–16
Specific latent heat – measuring fusion and vaporization of water Physics · Thermal Physics & Gases An electric heater of power P heats m kg of ice from −10 °C until it has all melted, boiled and vaporized. A... Ages 17–18
Electron diffraction and the de Broglie wavelength – diffraction tube, double slit, electron microscope Physics · Quantum & Nuclear Physics An electron diffraction tube with a graphite target: change the accelerating voltage V and watch the rings on the... Ages 17–18
Polarisation and Malus's law – I = I₀cos²θ, transverse waves through slits, reflection and sunglasses Physics · Oscillations & Waves A virtual practical on polarisation: light from a lamp passes through a polariser and an analyser; turn the analyser... Ages 16–17
Electromagnetism lab – induction, transformer, generator Physics · Electric & Magnetic Fields Six experiment screens on electromagnetic induction: a bar magnet with a compass and a field meter; moving a magnet... Ages 17–18
Masses and springs lab – oscillation and energy Physics · Oscillations & Waves Hang objects on a vertical spring and watch them oscillate across four screens: Intro, Vectors, Energy and Lab.... Ages 16–17
Free fall and fall with air resistance Physics · Kinematics Two objects of different mass and cross-section are dropped together from the same height. With drag off, both hit... Ages 15–16
Combining uncertainties – measuring density Physics · Measurement & Uncertainty Find the density of a cylinder or a rectangular block from its mass, measured on a balance, and its dimensions,... Ages 15–16
Measurement error in repeated length readings Physics · Measurement & Uncertainty A ruler with an adjustable resolution measures a metal rod repeatedly; each reading appears half a second apart with... Ages 15–16
Standing waves on a string Physics · Oscillations & Waves A string of length l has either both ends fixed or one end free. Change the vibrator frequency and wave speed to... Ages 16–17
Waves on a string – travelling waves, reflection and standing waves Physics · Oscillations & Waves A string made of 81 beads, with the wave equation solved by finite differences. Choose how to drive the left end... Ages 16–17
Centre of mass, centre of gravity and stability – plumb line and toppling Physics · Forces & Dynamics Three screens: place point masses on a rod or a plane, choose which ones are inside the system boundary and watch... Ages 15–16
Air track collisions – conservation of momentum Physics · Energy & Momentum Two carts of mass m₁ and m₂ move with velocities v₁ and v₂ on an air track, then collide either elastically or... Ages 15–16

Chemistry

31 labs

Biology

20 labs

Integrated Science

30 labs