3.05 science 1

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Chemistry

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Jan 9, 2024

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The Atmosphere and You Lab Report Instructions: Record your observations in the lab report below. You will submit your completed report. Name and Title: Include your name, instructor's name, date, and name of lab. Ora Costine, Mrs. Nichols, 3/24/22, The Atmosphere and You Objective(s): In your own words, what was the purpose of the lab? The purpose of this lab was to learn about the atmosphere and what we can do to help it. Hypothesis: In this section, please include the if/then statements you developed during your lab activity. These statements reflect your predicted outcomes for the experiment. My hypothesis is that temperatures all over the world will increase within the next century. Independent variable: Emission Dependent variable: Temperature Year Carbon Emissions (gigatons) Temperature (Fahrenheit) 1960 4.2 57.2 1970 5.8 57 1980 6.2 57.4 1990 7.8 57.6 2000 8 58 2010 9.8 58 Maintain carbon dioxide emissions at 9.8 for the rest of scenario one. 2020 9.8 58.2 2030 9.8 58.6 2040 9.8 58.9 2050 9.8 59.1 2060 9.8 59.5 2070 9.8 59.7 2080 9.8 60 2090 9.8 60,1 2100 9.8 60.5 2110 9.8 60.7

Year Carbon Emissions (gigatons) Temperature (Fahrenheit) 1960 4.2 57.2 1970 5.8 57 1980 6.2 57.4 1990 7.8 57.6 2000 8 58 2010 9.8 58 Decrease carbon dioxide emissions by 0.2 each step forward for the rest of scenario two. 2020 9.6 58.2 2030 9.4 58.6 2040 9.2 58.9 2050 9.0 59.1 2060 8.8 59.4 2070 8.6 59.6 2080 8.4 59.8 2090 8.2 60 2100 8.0 60.1 2110 7.8 60.3 Year Carbon Emissions (gigatons) Temperature (Fahrenheit) 1960 4.2 57.2 1970 5.8 57 1980 6.2 57.4 1990 7.8 57.6 2000 8 58 2010 9.8 58 Increase carbon dioxide emissions by 0.2 for each step forward for the rest of scenario three. 2020 10 58.2 2030 10.2 58.7 2040 10.4 59 2050 10.6 59.2 2060 10.8 59.6 2070 11 59.9 2080 11.2 60 2090 11.4 60.4 2100 11.6 60.8 2110 11.8 61

Conclusion: Use your data to answer the following questions. Use complete sentences, and be as detailed as possible. 1. Summarize how the carbon emissions affected the atmospheric temperature in each of the three scenarios: • Scenario One: Even if the carbon emissions stay the same, the temperature still rises. • Scenario Two: If the carbon emissions go down, the temperature slowly rises. • Scenario Three: If the carbon emissions go up, the temperature will quickly do the same. 2. Was your hypothesis supported by your results or not? Explain how you know. Yes. I know this because the data in the charts above shows that over time temperatures rise. 3. Explain the difference between the greenhouse effect and global warming. The greenhouse effect is a natural change caused by the atmosphere and light that comes from the sun. Climate change is a change in the earth which causes it to heat up at a dangerous rate. 4. Based on your knowledge of how the greenhouse effect works, why does the level of carbon dioxide affect the global temperature? It affects global temperature because the more carbon dioxide that there is, the weaker the ozone layer becomes. The ozone layer is what protects us from sunlight rays. 5. Name three sources of atmospheric carbon dioxide. Ocean release, decomposition, and respiration.

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