01
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Open explore a topicLearn ✦ build ✦ discover ✦ 288 published experiments ✦ no download required
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Interactive STEM learning: Learn
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Interactive simulations for physics, biology, mathematics, engineering, and code. Change the system, test an idea, and see what happens.
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Pick a field, open a published experiment, and learn by changing what happens next.
Physics Simulations Online — Free Interactive Labs
69 published interactive physics simulations covering projectile motion, pendulums, circuits, waves, quantum mechanics, and more.
Chemistry Simulations Online — Free Interactive Labs
Free interactive chemistry simulations: titration, equilibrium, reaction kinetics, electrochemistry, the periodic table, and more. Runs in your browser.
Biology Simulations Online — Free Interactive Labs
Free interactive biology simulations: DNA replication, cell division, natural selection, photosynthesis, genetics, and more. Visual and hands-on.
Interactive Math Simulations & Visualizations — Free
Free interactive math tools: calculus, algebra, geometry, probability, fractals, linear algebra, and more. Visualize concepts instead of memorizing them.
Engineering Simulations Online — Free Interactive Labs
Free interactive engineering simulations: circuits, control systems, robotics, aerodynamics, bridges, motors, and more. Explore how engineered systems behave.
Computer Science & Tech Simulations — Free Interactive
Free interactive CS and technology simulations: algorithms, data structures, machine learning, cryptography, networking, and more. Learn by doing.
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02
Try a challenge
Open a published problem, reveal hints when needed, and test your reasoning.
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Follow a pathway
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Pow! STEM challenges
Physics · Medium
Projectile Motion
Physics challenge: A ball is launched from the ground at 30 m/s at 45° above the horizontal. Ignore air resistance (g = 10 m/s²).
Physics · Easy
Newton's Laws Quiz
Physics challenge: Test your understanding of Newton's three laws of motion through scenario questions.
Physics · Hard
Quantum Superposition
Physics challenge: Explore the fundamentals of quantum mechanics: wave functions, superposition, and measurement.
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