Interactive laboratory // 37 published
Biology Simulations Online — Free Interactive Labs
Free interactive biology simulations: DNA replication, cell division, natural selection, photosynthesis, genetics, and more. Visual and hands-on.
Astrobiology Simulation: Life Beyond Earth
Investigate the conditions needed for life in this free online astrobiology simulation — explore extremophiles, habitable zones, and biosignatures.
Blood Circulation Simulator: Beating Heart Explained
Interactive blood circulation simulator with a beating heart. Adjust heart rate and stroke volume, watch cells oxygenate, and see cardiac output update live.
Cell Builder: Assemble Animal & Plant Cells
Build animal and plant cells from scratch in this free interactive cell builder — place organelles, learn their functions, and see how cells are structured.
Cell Division: Mitosis & Meiosis Simulation
Step through mitosis and meiosis phase by phase in this free interactive cell division simulation — watch chromosomes separate and understand why each process matters.
Cell Lab: Observe & Analyze Living Cells
Examine living cell behavior — membrane transport, organelle activity, and cellular response — in this free online cell lab simulation for biology students.
Coral Reef Ecosystem Simulation
Explore coral reef biology and the threats of bleaching, acidification, and overfishing in this free interactive marine ecosystem simulation.
CRISPR Gene Editing Interactive Simulation
Learn how CRISPR-Cas9 cuts and edits DNA in this free interactive simulation — target sequences, make edits, and see outcomes at the molecular level.
Developmental Biology: From Zygote to Organism
Trace embryonic development from fertilization through organogenesis in this free interactive developmental biology simulation for biology students.
DNA Replication Simulation: Interactive Molecular Model
Watch DNA unwind, pair, and copy itself in this free interactive replication simulation — explore helicase, polymerase, and the leading and lagging strands.
Ecology Simulation: Populations, Habitats & Food Webs
Model populations, food webs, and habitat dynamics in this free interactive ecology simulation — ideal for environmental and life science students.
Ecosystem Balance: Trophic Cascades & Stability
Discover how removing or adding a species tips an ecosystem in this free interactive ecosystem balance simulation — explore trophic cascades and keystone species.
Enzyme Kinetics Simulation: Rates, Substrates & Inhibition
Explore how enzymes speed up reactions, respond to substrate concentration, and are blocked by inhibitors in this free interactive enzyme kinetics simulation.
Enzyme Lock and Key Model Simulator | Substrate Reaction
Interactive enzyme lock and key simulator: bind key-shaped substrates to an active site, tune temperature, and watch reaction rate peak, slow, or denature.
Epidemiology Simulation: Model Disease Spread
Model infectious disease outbreaks with SIR dynamics in this free online epidemiology simulation — adjust transmission rates, immunity, and interventions.
Evolution Simulation: How Species Change Over Time
Watch species evolve over generations through mutation, selection, and drift in this free online evolution simulation for biology and life science students.
Gene Expression: Transcription & Translation Simulation
Trace gene expression from DNA to protein in this free interactive simulation — explore transcription, RNA processing, and translation step by step.
Genetics Simulation: Traits, Inheritance & Punnett Squares
Explore Mendelian genetics, dominant and recessive traits, and inheritance patterns with this free interactive genetics simulation for biology students.
Human Microbiome Simulation: Gut Bacteria & Health
Discover how trillions of gut microbes influence digestion, immunity, and health in this free interactive human microbiome simulation.
Human Physiology Simulation: Body Systems in Action
Investigate how the heart, lungs, kidneys, and other systems maintain homeostasis in this free interactive human physiology simulation.
Immunology Simulation: Immune Response to Pathogens
Watch the innate and adaptive immune system respond to infection in this free interactive immunology simulation — explore antigens, antibodies, and memory cells.
Interactive Human Anatomy Simulation
Explore the human body systems interactively — organs, bones, and tissues in a free online anatomy simulation for students and teachers.
Logistic Population Growth Simulator: S-Curve
Interactive logistic population growth simulator. Adjust growth rate r and carrying capacity K to watch the S-curve rise, slow, and plateau in real time.
Marine Biology Simulation: Ocean Life & Ecosystems
Dive into ocean ecosystems — from plankton to apex predators — in this free interactive marine biology simulation for students and educators.
Microbiology Simulation: Bacteria, Fungi & Protozoa
Explore the world of microorganisms — bacterial growth, reproduction, and antibiotic resistance — in this free interactive microbiology simulation.
Natural Selection Simulation: Survive, Adapt, Evolve
See natural selection in action as traits are filtered by the environment in this free online simulation — ideal for evolution and biology units.
Neural Network Simulation: How the Brain Learns
Explore how biological neural networks process information and learn through synaptic connections in this free interactive simulation for neuroscience students.
Neuron Action Potential Simulator Explained
Interactive neuron action potential simulator: stimulate an axon, watch voltage spike to +40 mV and repolarize on a live oscilloscope, and see Na+/K+ ion flux.
Neuron Simulation: Action Potentials & Synaptic Transmission
Model a single neuron's electrical activity — resting potential, action potential, and synaptic transmission — in this free interactive neuron simulation.
Neuroscience Simulation: Brain Regions & Cognitive Function
Map brain regions to their functions and explore sensory, motor, and cognitive processing in this free interactive neuroscience simulation.
Osmosis Simulator: Semipermeable Membrane Explained
Interactive osmosis simulator: adjust solute on each side of a semipermeable membrane and watch water flow toward the saltier side until levels reach equilibrium.
Pharmacology Simulation: Drug Action & Receptor Binding
Explore how drugs bind receptors, alter physiology, and produce dose-dependent effects in this free interactive pharmacology simulation for students.
Photosynthesis Simulation: Light Reactions & Calvin Cycle
Explore how plants convert sunlight into glucose in this free interactive photosynthesis simulation — trace electrons through the light reactions and Calvin cycle.
Population Genetics Simulation: Hardy-Weinberg & Allele Drift
Model allele frequency change across generations using Hardy-Weinberg equilibrium in this free interactive population genetics simulation.
Predator-Prey Cycles Simulator: Lotka-Volterra
Interactive predator-prey simulator: tune the Lotka-Volterra model with live sliders and watch rabbit and fox populations boom, bust, and cycle in real time.
Protein Folding Simulation: From Sequence to Structure
Watch a polypeptide fold into its functional 3D shape in this free interactive protein folding simulation — explore hydrophobic collapse, secondary structure, and misfolding.
Virology Simulation: Viral Structure, Replication & Infection
Explore viral structure, host cell entry, replication cycles, and immune evasion in this free interactive virology simulation for biology students.
Virus Spread Simulation: Track an Outbreak in a Population
Watch a virus spread through a population and test interventions in this free interactive virus spread simulation for epidemiology and biology students.
37 published simulations
Free interactive biology simulations: DNA replication, cell division, natural selection, photosynthesis, genetics, and more. Visual and hands-on.