Environmental Science, Study notes of Environmental science

Download Environmental Science and more Study notes Environmental science in PDF only on Docsity! E-ENVI-SCI JANUARY 31, 2022 PRELIM 1ND Lecture Material Introduction to Environmental Science CHED MEMORANDOM ORDER NO. 20 SERIES OF 2013 General Education Curriculum: Holistic Understandings, Intellectual and Civic Competencies GEC SUBIECTS: 1. Understanding the Self 2. Readings in the Philippine History 3. The Contemporary World 4. Mathematics in the Modern World 5. Purposive Communication 6. Art Appreciation 7. Ethics 8. Science, Technology and Society Environmental science • Is an interdisciplinary field of study that deals with the interactions of the physical, chemical and biological forms of the earth. • Interdisciplinary interconnected Environmental Science is a broad interdisciplinary field includes the natural sciences and the social sciences Environmental science Ethics Ecology Biology Chemistry Atmospheric science Oceanography Geology Anthropology archaeology Sociology History Political science Engineering economics PHYSICAL PARAMETERS: 1. Color 2. Odor 3. Temperature 4. Solids (Residues) 5. Turbidity 6. Oil Content 7. Grease Content CHEMICAL PARAMETERS: 1. Ph 2. Conductivity 3. Dissolved Oxygen 4. Nitrate 5. Chemical Oxygen Demand (COD) 6. Biochemical Oxygen Demand 7. Pesticides BIOLOGICAL PARAMETERS: 1. Coliforms 2. Pathogens 3. Viruses THE SCIENTIFIC METHOD • A method of research in which a problem is identified, relevant data are gathered, a hypothesis is formulated from these data, and the hypothesis is empirically tested. • Step by step process that able to solve problems. Scientific method Observations Questions Hypothesis Predictions Test Results Fail to reject hypothesis results - hypothesis Reject hypothesis results - predictions 1. Observation 2. Question/Define Purpose • The thing you want to know question you want to answer 3. Construct Hypothesis • Educative guess or prediction of the outcome experiment. This guess can be tested by performing an experiment. • Ho Null Hypothesis • H1 - Alternative Hypothesis 4. Predictions and Collect Data • Perform the said experiment 5. Test/Analyze Data • Review and analyze the data you collect during the experiment 6. Results/Conclusion • Determine if your hypothesis was correct or not - For Example! Using the steps in the scientific method make a research proposal on the topic "Growing Bean Plants" Growing Bean Plants 1. Observation • How does this bean plant propagate? 2. Question/Define Purpose • I want to know if bean plant will grow more quickly outside or inside. 3. Construct Hypothesis • Null hypothesis: There is no difference between growing a bean plant indoors and outdoors. • Alternative Hypothesis: There is significant difference between growing a bean plant indoors and outdoors. 4. Predictions and Collect Data • Plant four bean plant in identical pots using the same type of soil. Place two of these in an outdoor location and place the other two in an indoor location. • Care the plants in an identical way, like giving the same amount of water. Then each day for the three weeks of experimental period. • Carefully record the size of each plant in a notebook.