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Carbon Lab

Carbon Lab

Q Getting Started The carbon cycle describes the routes that carbon takes through the four biogeochemical storage reservoirs- atmosphere, water, organisms, and rocks/soil (see figure 2.20 in Essential Environment). Burning of fossil fuels is the primary way in which humans contribute to this cycle. The relevant impact of this human input is the increasing level of carbon dioxide (CO2) in the atmosphere. In this lab you will experiment with the human factors that contribute to this rise and explore how different inputs to the carbon cycle might affect the concentrations of the greenhouse gas CO2. Upon successful completion of this assignment, you will be able to: • Make scientific predictions, analyze scientific data and theorize how the information can be applied. ________________________________________ Resources • Textbook: Essential Environment: The Science Behind the Stories • Website: The Habitable Planet: A Systems Approach to Environmental Science, Interactive Labs • File: WS5 Lab Carbon • Video: WS5 Lab Tutorial. ________________________________________ Instructions 1. Review the rubric to make sure you understand the criteria for earning your grade. 2. Read Chapters 14 and 15 in Essential Environment: The Science Behind the Stories 3. Watch WS5 Lab Tutorial. 4. Download the WS5 Lab_Carbon file. 5. Navigate to The Habitable Planet, Carbon Lab a. Read and complete the lab lessons The Carbon Cycle, Step 1; Curb Emissions, Step 1 and 2; and Feedback Effects, Step 1 and 2. b. Record data and answer questions in the WS5 Lab_Carbon document (do not download the data table from the interactive lab) 6. The writing must follow APA requirements. 7. When you have completed your assignment, save a copy of your completed lab document for yourself and submit a copy to your instructor using the Assignment submission page by the end of the workshop. ________________________________________ Access the associated rubric Access the Assignment submission page Workshop 5: Carbon Lab Courtney Murray 10/3/2022 Navigate to the websitehttps://www.learner.org/courses/envsci/interactives/carbon/. Complete the lab lessons entitled “The Carbon Cycle” and “Curb Emissions” and “Feedback Effects”. Record your data in the tables below and answer the analysis questions that follow each step. **Note about the simulator illustration: All numbers refer to the amount of carbon present in that area. The plus or minus numbers (soil and ocean) show the change from the original value (in 2010). The scale is at the bottom: one grey rectangle equals 25 gigatons (GT) of carbon.** Lesson 1: The Carbon Cycle Read the lab Overview and The Carbon Cycle: Step 1. Click on Open Simulator. Record the carbon values for each “sink” (terrestrial plants, soil, oil and gas, coal, surface ocean, and deep ocean) in the year 2010. Run the simulation by clicking “Run Decade”, notice the change in carbon values. Record the total carbon levels in each “sink” in the year 2060 and 2110. Lesson 1: The Carbon Cycle Step 1 Gaseous Carbon Ocean Water Fossil Fuels Biosphere Gaseous Carbon To Year Atmosphere Ocean Surface Deep Ocean Oil and Gas Coal Soil Terrestrial Plants 2010 720-391 ppm CO2 1,000+0 38,000+0 500 3,500 1,800+200 700 2060 1,031 569 ppm CO2 1,000+107 38,000+250 66 3,170 1,800+238 758 2110 2,254-1,244 ppm CO2 1,000+333 38,000+1,091 700 700 1,800 899 Step 1 Analysis Questions: answer the following using complete sentences. 1. If only one half of the terrestrial plants in the world existed in 2110 (perhaps due to deforestation), what do you predict the 2. atmospheric carbon level would be? How would you change the simulation to reflect this?

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Photosynthesis requires CO2 to make food so it reduces CO2 total in atmosphere when biomass numbers are low and biomass is high. Plants act as a carbon sink. You would increase the atmosphere amount by cutting in half. To change the situation that reflects this would be to reset the deforestation settings. This would increase the amount of deforestation that occurs each year. Direct relationship. When you increase one then another increases. These are requirements due to to the terrestrial plant and oceanic plankton. Carbon can be transferred by water runoff from mountains and fertilizers. Requirements that help increase are nutrients, water, and CO2.