🎮 Interactive STEM Simulations
Explore 120+ interactive simulations covering physics, chemistry, biology, and mathematics. Build custom experiments with our block-based programming engine, or discover and remix community creations.
PhET Physics Sims
50+ physics simulations from PhET Interactive Simulations covering mechanics, electricity, waves, optics, and quantum mechanics.
Virtual Chemistry Lab
30+ chemistry experiments including reactions, acids and bases, states of matter, and atomic structure simulations.
Biology Experiments
20+ biology simulations covering natural selection, genetics, cell division, ecosystems, and molecular biology.
Math Visualizations
20+ math simulations for graphing, geometry, statistics, calculus, and algebra with interactive visual feedback.
Block-Based Builder
Create custom physics simulations using our visual drag-and-drop programming engine. No coding required.
Community Marketplace
Discover, fork, and remix thousands of simulations created by educators and students worldwide.
🎨 Build Your Own
Use our block-based programming engine to create custom physics simulations. Define objects, forces, and behaviors without writing code.
Open Studio🔍 Explore Community
Browse thousands of user-created simulations. Fork and remix existing projects to create your own variations.
Visit MarketplaceStart Experimenting Today
Join thousands of students and educators using interactive simulations to master STEM concepts. Create your free account and start exploring.
Get Started FreeFrequently Asked Questions About Simulations
What are PhET simulations and why are they effective?
PhET Interactive Simulations, developed by the University of Colorado Boulder, are research-based interactive simulations that make abstract STEM concepts visible and manipulable. Research shows that students learn more effectively when they can actively explore concepts by manipulating variables, observing cause-and-effect relationships, and conducting virtual experiments. These simulations are designed based on educational research to support conceptual understanding and scientific reasoning skills.
How do I use the block-based programming simulator builder?
Our block-based programming engine makes building custom physics simulations accessible to everyone without writing code. Simply drag and drop blocks to define objects, set initial conditions, add forces, and specify behaviors. You can create experiments with gravity, friction, collisions, and more. The intuitive interface is similar to Scratch but specifically designed for physics simulations. Once created, you can save, share, and even let others fork and remix your work.
Can I use simulations in my courses and assignments?
Yes, teachers can embed any PhET simulation directly into their courses alongside text, images, and quizzes. When students complete the simulation activity, their progress and quiz results are tracked automatically. You can assign specific simulations as homework, in-class activities, or lab exercises. The integration allows you to monitor student engagement and understanding, providing valuable data to inform your teaching strategies.
What subjects and topics are covered by the simulations?
Veelearn offers 120+ PhET simulations covering physics (mechanics, electricity, magnetism, waves, optics, quantum mechanics, thermodynamics), chemistry (atoms, molecules, reactions, acids and bases, periodic table), biology (genetics, natural selection, cell biology, ecosystems), and mathematics (graphing, arithmetic, algebra, calculus). Each simulation is designed to align with K-12 and college curriculum standards, making them suitable for classroom use at all levels.
How does forking and remixing simulations work?
When you find a simulation you like in the community marketplace, you can click "Fork" to create your own copy. You can then modify any aspect of the simulation—change parameters, add new elements, adjust the physics model—to create a custom version that meets your needs. When you publish your remix, it links back to the original simulation, giving credit to the creator. This collaborative approach allows the community to build upon each other's work and create increasingly sophisticated simulations.
Are the simulations accessible on mobile devices?
Yes, PhET simulations are designed to work on desktop computers, tablets, and mobile phones. The touch-optimized interface allows students to interact with simulations using touch gestures on tablets and smartphones. This flexibility means students can learn anywhere—on the bus, at home, or in the classroom—without being tied to a specific device. The responsive design ensures that simulations remain usable and educational across all screen sizes.