Biology
Cells, the human body, genetics and ecology
Primary school1/10
Coming soonParts of a Plant
Explore roots, stems, leaves and flowers and what they do
Coming soonLife Cycles
Follow a butterfly, a frog and a bean plant through their life cycles
Coming soonGrouping Animals
Sort animals into mammals, birds, fish, reptiles, amphibians and insects
Coming soonHabitats
Match animals to the places they live best
Coming soonTeeth and Eating
Compare the teeth of plant eaters, meat eaters and humans
Coming soonThe Five Senses
Test sight, hearing, touch, taste and smell
Coming soonGerms and Handwashing
See how washing with soap removes germs
Coming soonTrees Through the Seasons
Watch a tree change from spring to winter
Coming soonRotting and Decomposers
Watch fruit and leaves break down over weeks
Middle school5/34
FreePhotosynthesis Rate
Adjust light, CO₂ and temperature and count the oxygen bubbles
The Beating Heart
Adjust the heart rate and watch the valves
FreeFood Chains and Webs
Add or remove species and see the ecosystem respond
Blood Types and Transfusion
Match donors and recipients
FreeOsmosis in Potato Cylinders
Soak potato pieces in sugar solutions and measure the mass change
Coming soonUsing a Microscope
Adjust the objective, eyepiece and focus
Coming soonPlant and Animal Cells
Click organelles on a 3D cell model
Coming soonCell Division
Follow chromosomes through cell division
Coming soonPlant Respiration
Change oxygen and temperature conditions
Coming soonTranspiration
Change humidity, wind and light
Coming soonSeed Germination
Adjust water, temperature and oxygen
Coming soonDigestive System
Follow food through the digestive organs
Coming soonBlood Circulation
Trace the pulmonary and systemic circuits
Coming soonRespiratory System
Model lung expansion and gas exchange
Coming soonReflex Arc
Trigger a stimulus and follow the nerve signal
Coming soonBacterial Growth
Change temperature, nutrients and time
Coming soonInherited Traits
Choose parent genes and compute offspring odds
Coming soonPlasmolysis in Onion Cells
Change the salt solution and watch the cells shrink
Coming soonLeaf Structure and Stomata
Open and close stomata in a leaf section
Coming soonFlowers and Pollination
Carry pollen from stamen to pistil
Coming soonPlant Tropisms
Shine light from the side and watch shoots bend
Coming soonFood Tests
Test foods for starch, sugar, protein and fat
Coming soonNutrition and a Balanced Diet
Build a meal and compare it with daily needs
Coming soonBlood Components
Separate blood and compare the cells
Coming soonKidneys and Urine Formation
Follow filtration and reabsorption in a nephron
Coming soonThe Human Eye
Adjust the lens to focus near and far
Coming soonThe Ear and Hearing
Follow sound from the eardrum to the cochlea
Coming soonBones, Joints and Muscles
Bend the arm and watch the muscles work in pairs
Coming soonExercise and Heart Rate
Change the activity level and track pulse and breathing
Coming soonClassification Keys
Identify organisms with a dichotomous key
Coming soonThe Carbon Cycle
Move carbon between air, living things, ocean and rock
Coming soonYeast Fermentation
Change sugar and temperature and measure the gas
Coming soonDNA Structure
Unzip the double helix and pair the bases
Coming soonBell Jar Lung Model
Pull the diaphragm down and watch the balloons inflate
High school10/42
Enzyme Activity
Adjust substrate concentration, temperature and pH
FreeMendelian Genetics
Cross parents and test segregation and independent assortment
Action Potential
Adjust stimulus strength and watch the membrane voltage
FreeNatural Selection
Change the environment and watch traits shift
Predator-Prey Dynamics
Tune birth and hunting rates and plot both populations
Population Growth Curves
Compare exponential and logistic growth
Mark and Recapture
Estimate population size by sampling twice
PCR Amplification
Cycle the temperature and double the DNA
Cell Size and Surface Area
Grow a cell and compare surface area with volume
Epidemics and the SIR Model
Change the contact rate and vaccination and flatten the curve
Coming soonMembrane Transport
Model diffusion, osmosis and active transport
Coming soonATP and Energy Transfer
Model ATP synthesis and hydrolysis
Coming soonThe Photosynthesis Pathway
Model the light reactions and carbon fixation
Coming soonAerobic and Anaerobic Respiration
Compare ATP yield and products
Coming soonMitosis
Watch chromosomes separate step by step
Coming soonMeiosis
Model homologous chromosome separation
Coming soonDNA Replication
Unzip the helix and pair the bases
Coming soonTranscription and Translation
Enter a DNA sequence and get the protein
Coming soonGene Mutation
Edit a DNA sequence and see the protein change
Coming soonAllele Frequencies
Model selection, drift and migration
Coming soonBlood Glucose Regulation
Model the effects of insulin and glucagon
Coming soonEcosystem Energy Flow
Adjust producers and consumers
Coming soonImmune Response and Vaccines
Compare the first and second exposure
Coming soonVirus Replication
Follow a virus through a host cell
Coming soonAntibiotic Resistance
Treat a bacterial population and watch resistance spread
Coming soonQuadrat Sampling
Count plants in random quadrats and estimate density
Coming soonEcological Succession
Watch bare rock become forest over time
Coming soonThe Nitrogen Cycle
Follow nitrogen through bacteria, plants and soil
Coming soonSex-Linked Inheritance
Cross parents and track a recessive X-linked trait
Coming soonPedigree Analysis
Read a family tree and infer the inheritance pattern
Coming soonGene Regulation
Switch the lac operon on and off
Coming soonGel Electrophoresis
Separate DNA fragments by size
Coming soonGenetic Engineering
Cut and paste a gene into a plasmid
Coming soonPhotosynthetic Pigments
Separate leaf pigments by chromatography
Coming soonPlant Hormones
Apply auxin and compare growth
Coming soonBody Temperature Regulation
Change the room temperature and watch the body respond
Coming soonSynaptic Transmission
Release neurotransmitters across a synapse
Coming soonHormones and Negative Feedback
Change hormone levels and follow the feedback loop
Coming soonGenetic Drift
Shrink a population and watch allele frequencies wander
Coming soonSpeciation and Isolation
Split a population with a barrier and watch the groups diverge
Coming soonPhylogenetic Trees
Build an evolutionary tree from shared traits
Coming soonBiodiversity Index
Sample a habitat and calculate a diversity index
University1/7
Coming soonHodgkin-Huxley Neuron Model
Inject current and watch ion channels fire an action potential
Coming soonPharmacokinetics and Dosing
Change dose and interval and keep a drug in its therapeutic window
Coming soonCompetition Between Species
Find when two species coexist or one wins
Coming soonOxygen Dissociation Curve
Shift the hemoglobin curve with pH, carbon dioxide and temperature
Coming soonGenetic Linkage and Recombination Maps
Measure recombination frequencies and order genes on a chromosome
Coming soonSequence Alignment
Align two DNA sequences and score the matches