Presentation on theme: "1.What is the environment? 2.Is the environment something that can be: A. Harmed B. Saved C. Preserved D. Destroyed If so, give examples of each. Bellringer/Section."— Presentation transcript:
1.What is the environment? 2.Is the environment something that can be: A. Harmed B. Saved C. Preserved D. Destroyed If so, give examples of each. Bellringer/Section 1 Notes
Environmental Science Chapter 1
I. Understanding our Environment A.Which of the following pictures qualify as an environment? Why or why not?
B. Environmental Science –The study of how ______ humans 1.What is the main goal of environmental science? a.Solve environmental problems by studying the interaction of humans and the environment. interact with the environment. II. Fields of study A.Environmental science incorporates many disciplines: 1.Ecology 2.Biology 3.Earth Science 4.Physics 5.Chemistry 6.Social Science 7.Economics
1.Economists value the environment at 33 trillion dollars (that’s $33,000,000,000,000). Make a list of 5 services that the Earth’s ecosystems provide. Bellringer/Section 2 Notes
The Tragedy of the Commons
I. The Tragedy of the Commons A.Common – 1.Short term strategy – use resources w/out sharing. Why? People thought that if they didn’t use the resources, someone else would. areas of land that belonged to a whole village. 2.Results – no resources for anyone.
B.Commons were replaced individually owned fields. 1.Over use meant destroying your own field. C.What are the “commons” of today? What is the benefit of doing this?
II. Economics and the Environment A.Supply and Demand 1.The greater the demand, the more it’s worth.
2.Demand for oil increases what happens? a.Pay higher prices b.Use less oil c.Find new energy sources III. Costs and Benefits A.Balances the cost of action against the expected benefits. Industry – The cost of pollution control is too expensive. Community – The benefit is worth the cost. Example:
IV.Developed vs. Developing Countries A. Developed – Higher average income Slower population growth Diverse industrial economies Stronger social support systems Examples: U.S.A. Canada Japan Korea
B. Developing – Agricultural based economy Rapid population growth Examples: Afghanistan Haiti
C. Population Pressures 1.Populations increase rapidly resources aren’t available. 2. Food production cannot keep up with the pop. growth. 3. Little to no government support.
Your teacher has given you the following assignment: Investigate the impact on plant growth of adding various amounts of fertilizer to potted plants. Think about what you would need to do to be certain that the fertilizer was having the impact on the plant growth. Then answer the items below. 1.Place a Y besides items that would be part of your plan to investigate plant height and fertilizer. Place a N besides items that will not help you investigate this particular connection. a. __ Put one plant in a sunny windowsill and one in a dark corner. b. __ Give plants the same amounts of water. c. __ Give different plants different amounts of fertilizer without keeping track of which plant got extra fertilizer. d. __ Use some new plants from seeds and some old plants that have been growing for months. e. __ Start with plants that are the same size. f. __ Keep all plants in a similar location. g. __ Carefully note amounts of fertilizer each plant is given. h. __ Keep one plant fertilized but with no water. 2. Name at least five tools or supplies will you need to perform this experiment
The Scientific Method
I. The Scientific Method A. The ______________ is a way to solve problemsscientific method B. Scientific Method Steps 1. Observe 2. Ask a Question 3. Research/Collect Data 4. Form aHypothesis a. Hypothesis -A possible answer 5. Experiment (test hypothesis) 6. Draw conclusion
A. Experiments contain VARIABLES – a factor that can change. B. There are 2 types of variables: 1. Independent variable – variable that is changed by the scientist. 2. Dependent variable – Variable that changes as the independent variable changes. II. The experiment C. Experiments also contain: 1. Controls: a standard of comparison 2. Constant: things that DO NOT change in an experiment.
III. Making a graph A.Independent variable – variable plotted on the x-axis B.Dependent variable – variable plotted on the y-axis C.Linear graph – plots make a straight line.
Close your notebook
Observation Ask a Question Research and collect data Form hypothesis Experiment Draw Conclusion 1. Ask a question4. Observation 2. Draw Conclusion5. Research and collect data 3. Form hypothesis6. Experiment
Class Work What you need:Notebook paper Textbook
Make your paper look like this: Definition To me, it’s like… Picture My Definition The Scientific Method