SCI 207 Entire Course (New)
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SCI 207 Week 1 Lab 1 Introduction to Science (New) SCI 207 Week 1 Assignment Environmental Footprint SCI 207 Week 1 DQ 1 Biomes and Diversity SCI 207 Week 2 Assignment Evaluating Credible and Scholarly Scientific Sources SCI 207 Week 2 DQ 1 Food and Agriculture SCI 207 Week 2 Lab 2 Water Quality and Contamination (New) SCI 207 Week 3 Lab 3 Biodiversity (New) SCI 207 Week 3 Assignment Outline of the Final Lab Report (New) SCI 207 Week 3 DQ 1 Age of Oil SCI 207 Week 4 Lab 4 Energy Sources and Alternative Energy (New) SCI 207 Week 4 DQ 1 Climate and Air Pollution SCI 207 Week 5 Lab 5 Weather and Climate Change (New)
SCI 207 Week 5 DQ 1 Waste SCI 207 Week 5 Assignment Final Lab Report (New) ==============================================
SCI 207 Week 1 Assignment Environmental Footprint (Ash)
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SCI 207 Week 1 Assignment Environmental Footprint
General Questions - General Questions
Environmental Footprint The purpose of this assignment is to learn more about how connected you are to the ecosystems and biosphere that you inhabit. You will learn how your everyday choices contribute to the human impacts on our environment you have been learning about. Most importantly, you will learn about benefits that you can
receive by joining the increasing number of people who are making choices that reduce their environmental impact.
First, calculate your ecological footprint.
a. Use the Footprint Calculator to measure your ecological footprint and learn “how many earths” it takes to support your lifestyle. Be sure to choose the “detailed response” option for each question.
b. Answer each question in the quiz honestly and record your answers and results in the Environmental Footprint Reporting Form (available for download in your online course).
Second, calculate your household carbon emissions.
a. Use the Household Carbon Footprint Calculator to measure your carbon emissions and determine your environmental impact and the benefits of solutions.
§ Section 1: Estimate your current total household emissions (from home energy use, vehicle use, waste).
ยง Section 2: Explore actions you can take to reduce your greenhouse gas emissions, energy use, and waste disposal costs.
ยง Section 3: See how much you can save (in dollars and emissions) by taking the actions you chose in Section 2.
b. Answer each question in the quiz honestly and record your answers and results in the Environmental Footprint Reporting Form.
Complete Tables A and B as well as assignment questions 1 through 4 on the Environmental Footprint Reporting Form. Save your answers as a Word document. The document must be formatted according to APA style. For information regarding APA samples and tutorials, visit the Ashford Writing Center, located within the Learning Resources tab on the left navigation toolbar, in your online course. Submit the document via the Assignment Basket in your online course. ==============================================
SCI 207 Week 1 DQ 1 Biomes and Diversity
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Week 1, Discussion 1 Biomes and Diversity As you have learned in the readings, extinction is a natural selection process. You have also read that humans are often responsible for accelerating this process. Using at least two scholarly or reputable resources and your textbook, address whether or not we as humans should be concerned with the extinction rate. Additionally, discuss whether or not humans should strive to preserve representative samples of all biomes on the planet. Before beginning your discussion, watch the video “How to find scholarly articles,� which defines the difference between scholarly, reputable, and non-reputable resources. Response Should we as humans be concerned with the extinction rate? Should humans strive to preserve representative samples of all biomes on the planet? ==============================================
SCI 207 Week 1 Lab 1 Introduction to Science (New)
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Exercise 1: The Scientific Method In this exercise, you will answer the questions based on what you have seen in the videos throughout the lab. Be sure to pay careful attention to the videos – you will not only need them to complete this exercise successfully, but also to have a firm understanding of the scientific method for future labs. QUESTIONS 1. Make an observation – Write down any observations you have made regarding the effect of pollution on the environment. Answer = 2. Do background research – Utilizing the scholarly source (provided here), describe how pollution might affect yeast. Answer = 3.Construct a hypothesis – Based on your research from question 2, develop an ifthen hypothesis relating to the effect of pollution on yeast respiration. Answer = 4. Test with an experiment – Identify the dependent variable, independent variable, and the controlled variables for the experiment. Answer = 5. Analyze results – Record your observations of the three test tubes before incubation and compare them to the observations provided in the video. Answer = 6. Analyze results – Record your observations of the three test tubes after incubation. Answer = 7. Analyze results – The table below shows sample data regarding the amount of carbon dioxide produced by each tube. Determine what type of graph would be the most appropriate for displaying the data and explain why you chose that graph. Then, make a graph. Use Microsoft Excel or a free graphing program (for example, https://nces.ed.gov/nceskids/createagraph/) to create the graph. Submit this with your post-lab questions. Answer = 8. Draw conclusions – Interpret the data from the graph in Question 7. What conclusions can you make based on this graph? Answer = 9. Draw conclusions – Based on your observations and your graph, would you
reject or accept the hypothesis you made in Question 3? Why? Answer = 10. Draw conclusions – Imagine you are an environmental scientist employed by a city. Some residents have expressed concerns regarding how salt is applied to roadways in the winter because of the harm it may cause aquatic life in area streams. Propose an experiment using yeast to determine if salt pollution runoff is a potential concern in your community. Answer = References Any sources utilized should be listed here. ==============================================
SCI 207 Week 2 Assignment Evaluating Credible and Scholarly Scientific Sources
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Evaluating Credible and Scholarly Scientific Sources Week Two Assignment In this assignment, you will examine three different sources - one source that would be considered scholarly, one source that is credible but not scholarly, and one source that would not be
considered credible for use in an academic paper. After completing a worksheet on each source, can you identify which is which? ==============================================
SCI 207 Week 2 DQ 1 Food and Agriculture
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SCI 207 Week 2, Discussion 1 Food and Agriculture In the United States, we are fortunate to have an abundant supply of food. However, this abundance is largely due to advances in agricultural technology, which have in turn created numerous concerns surrounding our food sources. Provide at least two modern examples of how the United States has increased its food production. Using at least two scholarly or reputable resources and your textbook, discuss how these changes have affected the environment, and what impact they have on food safety? Your initial post should be at least 150 words in length. Utilize at least two scholarly or reputable resources and your textbook to support your claims. Cite your sources in APA format. Respond to at least two of your
classmates’ posts by Day 7. Carefully review the Grading Rubric that will be used to evaluate your assignment. ==============================================
SCI 207 Week 2 Lab 2 Water Quality and Contamination (New)
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Lab 2 – Water Quality and Contamination Experiment 1: Drinking Water Quality Bottled water is a billion dollar industry in the United States. Still, few people know the health benefits, if any, that come from drinking bottled water as opposed to tap water. This experiment will look at the levels of a variety of different chemical compounds in both tap and bottled water to determine if there are health benefits in drinking bottled water. POST-LAB QUESTIONS 1. Develop a hypothesis regarding which water sources you believe will contain the most and least contaminants, and state why you believe this. Be sure to clearly rank all three sources from most to least contaminants. Hypothesis = 2. Based on the results of your experiment, would accept or reject the hypothesis you produced in question 1? Explain how you determined
this. Accept/reject = 3. Based on the results of your experiment, what specific differences do you notice among the DasaniÂŽ, FijiÂŽ, and Tap Water? Answer = 4. Based upon the fact sheets provided (links at the end of this document), do any of these samples pose a health concern? Use evidence from the lab to support your answer. Answer = 5. Based on your results, do you believe that bottled water is worth the price? Use evidence from the lab to support your opinion. Answer = ==============================================
SCI 207 Week 3 Assignment Outline of the Final Lab Report (New)
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Introduction Body Paragraph #1 - Background: The rough draft of the introduction should describe the background of water quality and related issues using cited examples. You should include scholarly sources in this section to help explain why water quality research is important to society. When outlining this section, make sure to at least list relevant resources in APA format that will be used in the final paper
to develop the background for your experiment. Body Paragraph # 2 Objective: The rough draft of the introduction should also contain the objective for your study. This objective is the reason why the experiment is being done. Your rough draft should provide an objective that describes why we want to know the answer to the questions we are asking. Make sure the objective ties back to ideas you discussed in the Background, above. Body Paragraph # 3 - Hypothesis: Finally, the introduction should end with your hypothesis. This hypothesis should be the same one that you posed before you began your Drinking Water Quality experiment. You may reword it following feedback from your instructor to put it in better hypothesis format; however, you should not adjust it to reflect the “right” answer. You will not lose points if your hypothesis was wrong; scientists often revise their hypotheses based on scientific evidence following an experiment. In addition to stating the hypothesis, offer your rationale for it; in other words, why did you make that particular hypothesis? Materials and Methods Body Paragraph # 1: The rough draft of the materials and methods section should provide a brief description of the specialized materials used in your experiment and how they were used. This section needs to summarize the instructions with enough detail so that an outsider who does not have a copy of the lab instructions knows what you did. However, this does not mean writing every little step like “dip the phosphate test strip in the water, then shake the test strips,” these steps can be simplified to read “we used phosphate test strips to measure phosphate levels in parts per million”, etc. This section should be written in the past tense and in your own words and not copied and pasted from the lab manual. Think cookbook recipe here; you should explain enough of what you did for others to repeat the experiment,
but with nothing extra added. Results Tables: The rough draft of the results section should include all the tables used in your experiment. All values within the tables should be in numerical form and contain units (except pH, which does not have any). For instance, if measuring the amount of chloride in water you should report your measurement as 2 mg/L or 0 mg/L, not as two or none. Body Paragraph # 1: The rough draft of the results section should also highlight important results in paragraph form, referring to the appropriate tables when mentioned. This section should only state the results; no personal opinions should be included. A description of what the results really mean should be saved for the discussion. For example, you may report, 0mg/L of chlorine were found in the water, but should avoid personal opinions and interpretations such as, “No chlorine was found in the water, showing it to be cleaner than the other samples.” Discussion Body Paragraph #1 - Hypothesis: The rough draft of this section should interpret your data and provide conclusions. Start by discussing if your hypothesis was confirmed or denied and how you know this. Then consider some of the implications of your results. Given the chemical differences you may have noted between the water samples, are any of the differences causes for concern? Body Paragraph # 2 - Context: The rough draft of your discussion should also relate your results to bigger water concerns and challenges. For example, based on your experiment you might discuss how various bottled water companies use different filtration systems. Or, you could discuss the billion dollar bottled water industry. For example, do you think it is worth it to buy bottled water? Why or why not? Your outline should at least list some of the resources that you plan to utilize in your final paper to put your results into context. Body Paragraph #3 – Variables and Future Experiments: Finally,
the rough draft of your results section should also address any possible factors that affected your results, such as taking measurements over two different days instead of all at once. If possible sources of error were present, how might you control for these in the future? You should also propose some new questions that have arisen from your results and what kind of experiment(s) might be devised to answer these questions. Conclusions Body Paragraph #1: This section of your rough draft should briefly summarize the key points of your paper. What main message would you like people to take way from this report? References Include at least 2 scholarly and 2 highly credible sources as well as your lab manual, in APA format. ==============================================
SCI 207 Week 3 DQ 1 Age of Oil
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Age of Oil As you know, our world is heavily dependent on oil. In Chapter 6 of Contemporary Environmental Issues, you have read that there is concern about the possibility of reaching a peak in oil
production. Describe at least two alternatives to oil that are currently available and discuss the barriers that keep these alternatives from replacing oil as our primary means of energy? Additionally, utilizing at least two scholarly or reputable resources and your textbook, discuss the role that government plays in ensuring a transition to such alternatives in a post peak-oil world? Response Describe at least two alternatives to oil that are currently available and discuss the barriers that keep these alternatives from replacing oil as our primary means of energy? Discuss the role that government plays in ensuring a transition to such alternatives in a post peak-oil world? Related Tutorials ==============================================
SCI 207 Week 3 Lab 3 Biodiversity (New)
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Lab 3 – Biodiversity Experiment 1: Effects of Water Pollution on Plant Diversity Water pollution can have severely negative effects on biodiversity and ecosystems, particularly on plant populations. In many
cases, these pollutants are introduced to the environment through everyday human activity. In this experiment, you will contaminate several water samples, as well as purify a water sample. You will then evaluate the effects of water pollution and purification on the biodiversity of wildflowers. POST-LAB QUESTIONS 1. What effects did each of the contaminants have on the water in the experiment? Use Table 1 for reference. Answer = 2. What kinds of human activities could cause oil, acids, and detergents to contaminate the water supply? Answer = 3. What are the differences in color, smell, visibility, etc. between the “contaminated” water and the “treated” water? Answer = 4. From the introduction to Lab 2, you know that there are typically five steps involved in the water treatment process. Identify the processes (e.g., coagulation) that were used in this lab and describe how they were performed. Answer = 5. Develop a hypothesis regarding how using contaminated or purified water might affect plant biodiversity. Which pot do you believe will contain the greatest biodiversity (greatest number of species)? Why? Hypothesis = ==============================================
SCI 207 Week 4 DQ 1 Climate and Air Pollution
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Climate and Air Pollution As increases in human population lead to expansive industrialization and cultivation, increased carbon emissions are resulting in global climate change. This atmospheric alteration may result in a number of detrimental environmental impacts including food insecurity, increased spread of disease, more intense storms, and sea level rise. As the United States is one of the largest contributors to atmospheric carbon emissions, what specific policies might the United States enact to reduce its impact on global climate change? Using at least two scholarly or reputable resources and your textbook, discuss the economic impacts of any proposed policy. ==============================================
SCI 207 Week 4 Lab 4 Energy Sources and Alternative Energy (New)
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Lab 4 – Energy Sources and Alternative Energy Experiment 1: The Effects of Coal Mining Coal mining, particularly surface mining, leads to large areas of land being temporarily disturbed. Mines collect and conduct water that is in contact with pyrite, a mineral that produces iron and sulfuric acid when exposed to air and water. Limestone is often used to mitigate the effects of pyrite on water. In this lab, you will see first-hand the reasons why mine drainage can be harmful to the local drainage system if left untreated. POST-LAB QUESTIONS 1. Develop hypotheses predicting the effect of pyrite and limestone on water acidity? Why would you predict these effects? a. Pyrite hypothesis = b. Limestone hypothesis = 2. Based on the results of your experiment, would you reject or accept each hypothesis that you produced in question 1? Why? a. Pyrite hypothesis accept/reject = b. Limestone hypothesis accept/reject = 3. Based on your data, what effect do you predict coal mining has on the environment? Answer = 4. Based on your data, why would you use limestone to treat acid mine damage? Utilize at least one scholarly resource to support your suggestions. Answer = ==============================================
SCI 207 Week 5 Assignment Final Lab Report (New)
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Abstract The abstract should provide a brief summary of the methods, results, and conclusions. It should very briefly allow the reader to see what was done, how it was done, and the results. It should not exceed 200 words and should be the last part written (although it should still appear right after the title page). Introduction The introduction should describe the background of water quality and related issues using cited examples. You should include scholarly sources in this section to help explain why water quality research is important to society. When writing this section, make sure to cite all resources in APA format. The introduction should also contain the objective for your study. This objective is the reason why the experiment is being done. Your final report should provide an objective that describes why we want to know the answer to the questions we are asking. Finally, the introduction should end with your hypothesis. This hypothesis should be the same one posed before you began your experiment. You may reword it following feedback from your instructor to illustrate a proper hypothesis, however, you should not adjust it to reflect the “right� answer. You do not lose points for an inaccurate hypothesis; scientists often revise their hypotheses based on scientific evidence following an experiment. Include an explanation as to why you made the hypothesis that you did. Materials and Methods The materials and methods section should provide a brief description of the specialized materials used in your experiment and how they were used. This section needs to summarize the instructions with enough detail so that an outsider who
does not have a copy of the lab instructions knows what you did. However, this does not mean writing every little step like “dip the chloride test strip in the water, then shake the test strip,” these steps can be simplified to read “we used chloride test strips to measure the chloride levels of each sample in mg/L”, etc. Additionally, this section should be written in the past tense and in your own words and not copied and pasted from the lab manual. Results The results section should include all tables used in your experiments. All values within the tables or graphs should be in numerical form and contain units. For instance, if measuring the amount of chloride in water you should report as 2 mg/L or 0 mg/L, not as two or none. The results section should also highlight the important results in paragraph form, referring to the appropriate tables when mentioned. This section should only state the results as no personal opinions should be included. A description of what the results really mean should be saved for the discussion. For example, you may report, 0mg/L of chlorine were found in the water, but should avoid personal opinions and interpretations of the data (e.g., “No chlorine was found in the water showing it is cleaner than the others samples”). Discussion The discussion section should interpret your data and provide conclusions. Start by discussing whether you accepted or rejected your hypothesis and how you arrived at this decision. In the same section, consider some of the implications of your results. Given the chemical differences you may have noted between the water samples, are any of the differences causes for concern? Why or why not? The discussion should also relate your results to the bigger water concerns and challenges. For example, based on your experiments you might discuss how various bottled water companies use different filtration systems. Or, you could discuss
the billion dollar bottled water industry. For example, do you think it is worth it to buy bottled water? Why or why not? Your final lab report should utilize credible and scholarly resources to put your results into context. Finally, the results section should also address any possible factors that may have affected your results, such as possible contamination in the experiments or any outside factors (e.g., temperature, contaminants, time of day). If so, how could you control for these in the future? You should also propose some new questions that have arisen from your results and what kind of experiment might be proposed to answer these questions. Conclusions The conclusion section should briefly summarize the key findings of your experiment. What main message would you like people to have from this report? References Include at least two scholarly references, two credible references, and your lab manual in APA format. ==============================================
SCI 207 Week 5 DQ 1 Waste
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Waste In 2012, Americans alone produced over 250 million tons of garbage. One large component of this waste consisted of oil based plastic bags, which are utilized excessively by grocers, restaurants, and stores nationwide. In order to reduce this source of waste, many countries are banning plastic bags or taxing customers for their use. Using at least two scholarly or reputable resources and your textbook, discuss at least two environmental problems caused by such extensive plastic bag use. If you were in charge, what plan might you propose to reduce or eliminate their use? Discuss the economic impacts of implementing your plan versus the financial impacts of making no change in our current use. Your initial post should be at least 150 words in length. Utilize at least two scholarly or reputable resources and your textbook to support your claims. Cite your sources in APA format. Respond to at least two of your classmates’ posts by Day 7. ==============================================
SCI 207 Week 5 Lab 5 Weather and Climate Change (New)
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Lab 5 – Weather and Climate Change Lab 5 - Demonstration 1: Modeling the Water Cycle In this experiment you will observe how entrapped water moves from land to the atmosphere and determine how weather conditions affect this movement. POST-LAB QUESTIONS 1. Which water cycle processes are represented in this model, and what component of the model represents that process? Answer = 2. Which processes are not represented? Propose a change to the model in which two of these processes would be included. Answer = 3. How would the processes in question 1 be altered by an increase or decrease in temperature? Answer = Experiment 1: Assessing Infiltration In this experiment, you will observe how entrapped water moves from land to the atmosphere and determine how weather conditions affect this movement. POST-LAB QUESTIONS 1. Develop a hypothesis predicting the effect of sunlight on evaporation. Hypothesis = 2. Would you reject or accept your hypothesis? Why? Accept/reject = 3. What parts of the water cycle are represented in this experiment? Answer = 4. How would adding more sand to the bag affect the amount of water vapor released? Answer = 5. As a period of drought begins, how would infiltration and condensation change initially? What would happen to these two processes as the drought continues over time? Answer = ==============================================