Yenka Science

Yenka Technology is a powerful, but easy-to-use, simulator for systems and control.

It lets you design circuits, with a vast library of digital and analog electronics, and convert them to PCBs for manufacture. You can program PIC or PICAXE chips, and model the circuit in full 3D, with mechanical inputs and outputs.

Yenka Technology has been designed for children as young as 10 to use - unlike most of our competitors, which are converted industrial simulators.

As a result, Yenka's interface is easy to learn, and the software simulates as you work - so you can see how your changes affect the circuit straight away.

What does Yenka Science cover?

Experiment with sound, water and light waves, and ray diagrams.

Investigate projectiles, oscillations, gravity and motion.

Simulate power generation and transmission, and analogue electrical circuits.

Model experiments using a wide range of chemicals, equipment and glassware, graphing data as your simulations run.

Investigate electrolysis, electroplating and cells, choosing from a range of metal or carbon electrodes, and 28 different electrolytes.

Design circuits using over 100 types of digital and analog component.

Yenka Light and Sound

Yenka Light and Sound covers all of the optics and waves simulation that was found in Crocodile Physics. It lets you experiment with water, sound or EM waves, as well as modelling ray diagrams for optical systems. 

To help you get started, we've got a wide range of classroom content, with ready-made models, and a set of training videos.


  • Yenka lets you take a top-down view of wave propagation, and study key phenomena - such as refraction, interference, diffraction and reflection - with water, sound or EM waves.

  • Point or plane wave sources, and a moving source whose velocity and bearing you can control, generate waves. You can also control the frequency, phase and amplitude of each source.

  • Add obstacles, reflectors and slits to investigate reflection, refraction, diffraction and interference. Position these components wherever you want, and control properties like size, orientation, damping, slit spacing and width, and the material from which each is made.


  • A powerful optics simulator, with a range of components including lenses, prisms, mirrors and light sources, lets you model ray diagrams. 

  • You can import your own images and investigate how they look when viewed in lenses in mirrors. As shown below, intensity and blurring are modeled.

  • The rays from the object are drawn as you simulate, letting you trace their path through the optical system.

  • Properties for all of the optical components can be changed, either by dragging with the mouse or by typing in new values. You can also position the components however you like - a true virtual workbench.

Yenka Force and Motion

Yenka Motion lets you experiment freely with forces and motion, with control over a wide range of parameters. It covers the same motion topics as were found in Crocodile Physics.

  • Add balls, blocks and carts, position them as you wish, and drop, accelerate or collide them.

  • Define parameters like mass, elasticity, coefficient of friction, dimensions, velocity and driving force, and add your own images to give context.

  • Attach rods and springs to investigate simple pendulums, spring oscillations, Hooke's Law and rotational motion. 

  • Add gravity to your simulations - you can set the strength of this field, and also the elasticity and friction of the ground.

  • You can graph the motion of your parts - plot a wide range of quantities, like velocity, momentum, kinetic and potential energy, or acceleration.

Yenka Electricity and Magnetism

Yenka Electricity and Magnetism lets you experiment with the generation, transmission and use of electricity, in full 3D.

Power generation

  • A range of simulated power stations lets you generate energy to supply your simulated grid.

  • Alternatively, study electromagnetic effects: move a magnet through a coiled wire, controlling the number of turns in the wire and the diameter of the coil.

Power transmission

  • Connect a substation to your power station and choose the transformer ratio, and then connect it to the grid with power lines.

  • Investigate the effects of changing resistivity, cable diameter or length, and use aluminium high-voltage wires or copper low-voltage wires.

  • Finally, connect houses, factories or towns to your grid, to use the power you're generating.

Simulate circuits

  • You can also draw and simulate circuit diagrams. Choose from a range of components and link them by drawing wires with the mouse.

  • Edit parameters like resistance or capacitance, and graph quantities like voltage and current from your simulation.

Yenka Inorganic & Physical Chemistry

Yenka offers you a virtual laboratory, where you can model experiments in inorganic and physical chemistry safely and easily.

Drag chemicals, equipment and glassware from the toolbars at the side of the screen, and combine them as you wish.

  • Define parameters like mass, elasticity, coefficient of friction, dimensions, velocity and driving force, and add your own images to give context.

  • Then choose whatever quantities and concentrations you like: reactions are modelled accurately as soon as you mix the chemicals.

  • The powerful graph tools let you plot data from your reactions - for example, pH against volume. You can also view reaction mechanisms using 3D animations.

The power of simulation

Yenka Inorganic Chemistry offers much more than much other software. It's not just a limited set of animations: it's a full, flexible simulated laboratory.

As well as presenting the models on a whiteboard, you can let your students simulate their own experiments with Yenka Inorganic Chemistry - ideal for coursework, revision or group activities.

Because it's a virtual lab, they can experiment safely and easily, encouraging scientific enquiry and seeing reactions that aren't possible or practical in real life.

Yenka Electrochemistry

Yenka's electrochemistry simulation lets you experiment with electrolysis, electroplating and cells. There's a range of classroom activities and training videos to help you get started.

  • Choose from a range of metal or carbon electrodes, and combine them with one of 28 different electrolytes. For each electrolyte, you can set the concentration and volume precisely.

  • Add a battery and wire it to the electrodes, and watch your simulation run.

  • Information about the reactions that take place is displayed in the reaction details window. You can look at the reactions and properties at each electrode, as well as at the overall cell equation.

  • To simulate voltaic cells, use two beakers and a salt bridge, and a voltmeter to measure cell potential.

  • Make measurements from your simulation using equipment like a thermometer, a pH meter or a balance, or use the graph tool to plot simulated experimental data.

Yenka Electronic Design

Yenka Electronics lets you design and simulate circuits using over 150 types of component, testing and refining your design as you work

  • Professional electronic tools for schools - based on a new version of the Crocodile Clips simulation engine, Yenka Electronics makes electronic design straightforward - even for less experienced users.


  • Design circuits easily - choose components from the extensive library, draw wires with your mouse, and see the circuit spring to life. Click components to edit their properties, and graph changing voltages.

  • Analogue electronics range from simple power supplies and switches, through inputs, sensors and outputs, to semiconductors and op-amps. any offer several real models for use in its sister product Yenka PCBs - for example, 10 types of NPN transistor are on offer.


  • Digital electronics are also on offer too, with logic gates and extensive sets of 4000 and 7400 series ICs.

  • Edit maximum component ratings, and other parameters, by simply clicking on them in your circuit.

  • Simplified circuit editing - drag a component onto a wire, and it will be automatically inserted; there's no need to delete old wires or draw new ones. Drop it on an existing component, and it'll replace that component.

  • Design PCBs with our PCB tools: convert your simulation automatically into a 3D PCB design, simulate it and export it for manufacture.

  • Include PIC and PICAXE chips in your circuits with our micro-controller tools: program the chips with straightforward flowcharts before exporting them to real hardware.