A virtual lab is a digital simulation that lets high school students perform science experiments on a computer, tablet, or other device instead of (or in addition to) working at a physical lab bench. Students manipulate variables, observe reactions, collect data, and draw conclusions, all within software that mimics the look and behavior of real lab equipment. These simulations cover biology, chemistry, physics, and other STEM subjects, and they’re increasingly common in both in-person and online high school programs.
How Virtual Labs Actually Work
When you open a virtual lab, you typically see a 3D or 2D rendering of a lab workspace complete with beakers, microscopes, specimens, or circuits. You click, drag, and adjust elements the same way you’d handle physical equipment. The software responds in real time: mix two chemicals and you’ll see a color change, a temperature shift, or a precipitate forming. Adjust the angle of a ramp in a physics simulation and the acceleration of a rolling object changes accordingly.
Most platforms guide you through each experiment with instructions, built-in questions, and checkpoints. Some offer branching scenarios where making a mistake (like adding too much reagent) produces a realistic but consequence-free result, letting you learn from error without wasting materials or creating a safety hazard. Sessions typically last 20 to 45 minutes, depending on complexity.
Common Experiments by Subject
In biology, popular virtual labs include bacterial identification using DNA sequences, gel electrophoresis to separate DNA fragments, and virtual dissections of organisms like fetal pigs. These let students explore anatomy and molecular biology techniques that would be expensive or logistically difficult to run in every classroom.
Chemistry simulations often focus on titration experiments, where students carefully add one solution to another until a reaction endpoint is reached. Other common modules cover reaction rates, acid-base chemistry, and molecular modeling. Physics virtual labs let students manipulate variables like force, mass, and velocity to explore motion, energy, and wave behavior. The PhET project, originally developed at the University of Colorado, is one of the most widely used free simulation libraries for both chemistry and physics.
Platforms Schools Use
Labster is one of the largest commercial platforms, offering more than 300 immersive simulations across biology, chemistry, physics, and health sciences. It integrates directly with school learning management systems, provides automated grading, and lets teachers customize quizzes. Labster reports that 82% of students show high engagement with its simulations, and schools using the platform have seen a 34% decrease in students dropping, failing, or withdrawing from paired courses.
Gizmos, from ExploreLearning, is another popular choice. It emphasizes formative assessment tools that give students real-time feedback and provide teachers with data heatmaps showing which standards each student has mastered and where they still need support. Free options also exist: PhET simulations and resources compiled through the ChemCollective cover a broad range of topics at no cost, though they tend to be simpler in scope than commercial platforms.
How Teachers Monitor Your Progress
One of the biggest differences between a virtual lab and a traditional one is how visible your work becomes to your teacher. In a physical lab, your teacher circulates the room and checks in periodically. In a virtual lab, the software tracks every action you take, every answer you give, and how long you spend on each step.
Platforms like Gizmos generate color-coded heatmaps that rank students by skill and standard, making it easy for teachers to identify who needs extra help. Teachers can sort these results to plan whole-class review lessons, set up small-group stations, or assign individual practice. Many platforms also use AI-powered feedback that responds to student answers in real time, reducing the turnaround between making an error and understanding why it was wrong. Automated grading saves teachers significant time, especially in large classes running the same lab.
Do Students Learn as Much?
Research consistently shows that virtual labs produce learning gains comparable to physical labs. A study published in the European Journal of STEM Education compared students learning chemical kinetics through virtual experiments with those using traditional physical experiments. Both groups improved significantly from pre-test to post-test. The physical lab group scored slightly higher on average (44.00 vs. 42.40 on concept mapping), but the difference was not statistically significant. In practical terms, the two approaches were equally effective at building conceptual understanding.
Labster’s own data suggests that virtual labs can boost grades by a full letter grade or more in courses that integrate them. That said, most educators treat virtual labs as a complement to hands-on work rather than a complete replacement. Physical labs build tactile skills, spatial awareness, and comfort with real equipment that simulations can’t fully replicate. The strongest outcomes tend to come from combining both.
Safety and Cost Advantages
Safety is one of the clearest benefits. Virtual labs let students work with scenarios involving hazardous chemicals, high voltages, or biological materials without any physical risk. Experiments that would be too dangerous or too expensive for a typical high school, like working with electrolyte solutions or running advanced photosynthesis setups, become routine in a simulation.
Cost savings grow over time. Virtual training tools tend to be more expensive upfront than their physical counterparts due to development and licensing fees. But because the marginal cost of each additional student session is minimal (one study found it dropped to around $9 per trainee in the second year, compared to $230 per trainee for repeated live exercises), schools recoup the investment quickly. There are no consumable chemicals to restock, no broken glassware to replace, and no specialized ventilation systems to maintain.
What You Need to Run One
Most virtual labs run on standard school hardware. Typical system requirements include a computer with a multi-core processor running at 2 GHz or faster, a screen resolution of at least 1280×1024, and an internet connection with 5 Mbps download and 1 Mbps upload speeds. Latency under 200 milliseconds keeps simulations responsive. Most platforms work in a web browser with third-party cookies enabled. Mobile devices are generally not fully supported for more complex simulations, so a laptop or desktop is your best bet.
Schools with 1:1 device programs (where every student has a Chromebook or laptop) can roll out virtual labs with minimal additional infrastructure. The main recurring cost is the software license itself.
Accessibility for Students With Disabilities
Virtual labs have the potential to be more accessible than physical labs, though the quality of accessibility features varies widely by platform. The most inclusive designs include keyboard navigation so students with motor impairments don’t need a mouse, screen reader compatibility and text-to-speech for students with limited vision, and zoom controls that let users magnify small details. Some newer labs integrate smart speakers and voice recognition, allowing students to navigate experiments using voice commands like “next step,” “material list,” or “help.”
A systematic review in Frontiers in Education found that only a small number of virtual labs have fully implemented these features. Platforms that do include them offer options like resizable windows, adjustable font sizes, video descriptions, and the ability to start or stop audio narration with a button press. If accessibility is a concern, it’s worth checking the specific platform your school uses rather than assuming all virtual labs meet the same standards.
VR and AR Are Expanding the Experience
The newest wave of virtual labs goes beyond flat screens. Schools and universities are increasingly experimenting with virtual reality headsets that place students inside a fully 3D lab environment, and augmented reality tools that overlay digital information onto physical objects through a phone or tablet camera. These immersive formats make abstract concepts, like molecular structures or electromagnetic fields, easier to visualize and manipulate. As of 2025, adoption is still growing, with most schools using screen-based simulations as their standard while piloting VR and AR for select lessons.