Data Analysis
Chi Square M&M Simulator
Generate candy samples, compare observed and expected counts, and calculate chi-square.
AP Biology Simulations
Open the model, change a variable, collect evidence, and explain the biological pattern.
Cellular Energetics
Enzyme Rate Simulator
Change environmental conditions and substrate availability to analyze enzyme reaction rate.
Cell Structure
Cell Size and Surface Area
Change cell dimensions and examine how surface-area-to-volume ratio limits exchange.
Cell Transport
Water Potential and Osmosis
Manipulate solute concentration and pressure to predict water movement.