Population growth – carrying capacity

Integrated ScienceEcologyAges 13–14

A population (shown as individuals inside an environment box) grows from N₀ at rate r; once limited by carrying capacity K, the curve N(t) becomes S-shaped and levels off around K. Students choose an ecological factor (drought lowers K, abundant food raises K), tap the environment box to trigger a disease outbreak that cuts the population, and watch it recover. The growth formula and data update continuously.