Module 2 Intro

1. Module 2 Intro

1.9. Lab

Lesson 2: Page 3

Module 2—Biosphere Equilibrium and the Impact of Humans

Lesson 2 Lab: Biosphere in a Bottle

This image depicts a biosphere contained within a glass globe. The globe is filled with salt water and contains sandy sediments, coral, seaweed, and some small fish. Biogeochmical cycles are maintained by the abiotic and biotic components of this system.

To complete this lab, go to “Investigation 2.D: Biosphere in a Bottle” on page 57 of your textbook. This investigation asks you to design a self-sustaining model of an ecosystem. You have already looked at essential nutrients (biogeochemical cycles), energy transfer, and gas exchange (photosynthesis, cellular respiration). How will you use this information in your design?

You can complete this investigation in one of two ways: Perform the experiment as it is described in the textbook, or use the data as presented in the chart. Feel free to include digital photographs of your experiment as a tool for making observations.

In either situation, the Analysis and Conclusions questions on page 57 of your textbook must be completed.

Refer to your Module 2: Lesson 2 Assignment. Your response to "Lesson 2 Lab: Biosphere in a Bottle," should be saved/written on this document.