HES Activity 4.5 Overview

Target Student Performance

Students use a diagrammatic carbon cycle model to investigate how oceans and seasons in the Northern and Southern Hemispheres affect the annual cycle and a long-term trend in the atmospheric CO2 pool.

Resources You Provide

Resources Provided

Recurring Resources


Prepare one copy of 4.5 Seasons and Oceans Worksheet and one copy of Big Idea Probe: What Would Happen if We Cut Fossil Fuel Use in Half for each student. Prepare a computer and projector for the film and 4.5 Seasons & Oceans PPT. You may want to open the videos ahead of time on your computer as they will be shown during this lesson. Make sure students have their Learning Tracking Tool for Human Energy Systems available for the end of the lesson.