HES Activity 4.3 Overview

Target Student Performance

Students investigate the relationship between pools and fluxes in a physical model of a tiny world, showing how changing photosynthesis, cellular respiration, and combustion fluxes can account for both an annual cycle and a long-term trend in the atmospheric CO2 pool.

Resources You Provide

  • Markers for Tiny World Pool and Flux Activity to be used on the placement (30 per pair of students)

Resources Provided

Recurring Resources


Print the 4.3 Tiny World Pool and Flux Placemat. You may want to laminate them first in order to make them last longer. Print one copy of 4.3 Tiny World Modeling Worksheet for each student. Prepare a computer and projector to display the 4.3 Tiny World Modeling PPT.