EarthLabs > Climate and the Carbon Cycle: Unit Overview > Lab 2: Carbon on the Move!

Carbon on the Move!

Introduction

Carbon is constantly on the move through the different components of Earth's Geosphere and Biosphere, but at very different timescales and spatial scales. For example, the processes that move carbon from the ocean (hydrosphere) to the lithosphere happen over a very large spatial scale and can take timescales of millions of years. In contrast, the process that moves carbon from the leaves of plants in the biosphere to the atmosphere happens in minutes and at a spatial scale as small a leaf's surface. In this lab, you will have the opportunity to explore how the the global carbon cycle and subsets of the carbon cycle operate on very different spatial scales and timescales.

In Part A, you will explore the role of food webs in a subset of the natural carbon cycle by taking on the role of a carbon atom moving through a Lodgepole Pine forest carbon cycle. You will learn that photosynthesis, respiration, ingestion, and decomposition are key food web processes that move carbon from one forest reservoir to another. In Part B, you will use an interactive to investigate how carbon moves throughout the global carbon cycle. In Part C, you will apply system-thinking strategies to learn about the interconnectedness of the Earth system, feedback loops, and how changes in one part of the carbon cycle system can lead to other changes in the carbon cycle system.

After completing this investigation, you should be able to:


Keeping Track of What You Learn

Throughout these labs, you will find three kinds of questions. Your teacher will let you know which answers you should record and turn in.

« Previous Page      Next Page »