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Intro to ecology and the scientific method

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Transcript

  • 1. Ecology Mr. Nettles
  • 2. Class Motto
    • Discipline fuels character!
    • Character builds hope!
    • Hope assures your future!
  • 3. Agenda- Friday, January 6, 2011
    • Warm Up
    • What is Ecology?
    • Biomes Video
    • Exploring Ecuadorian Ecology
    • Wrap Up (LIA)
  • 4. Today’s Objectives
    • I will explore different aspects of ecology?
    • I will understand the steps involved in the scientific method.
    • I will define ecology, hypothesis, quantitative, qualitative, independent variable, dependent variable, and control.
  • 5. Warm Up
    • What do you know about ecology?
    • How is ecology used in our everyday world?
          • Use the internet to search the word “Ecology” to help you answer the warm up questions.
  • 6. What is Ecology?
    • Eco = nature, environment
    • logy = “the study of”
    • Eco + logy = Ecology
    • the study of the relationships that living organisms have with each other and their natural environment
  • 7. Wrap Up (Jan. 6)
    • What was one fact that you Learned today?
    • What was the most Interesting thing about today’s class?
    • How can you Apply or use the information that you learned today?
  • 8. Ecology Mr. Nettles
  • 9. Class Motto
    • Discipline fuels character!
    • Character builds hope!
    • Hope assures your future!
  • 10. Agenda- Thurs., January 12, 2011
    • Warm Up
    • The Scientific Method
    • Should My Friend Date Taylor Swift?
    • Wrap Up (LIA)
  • 11. Today’s Objectives
    • I will understand the steps involved in the scientific method.
    • I will define hypothesis, quantitative, qualitative, independent variable, dependent variable, and control.
  • 12. Warm Up (Jan. 12)
    • What are the four essential elements of ecological life that you learned from the short film last week?
    • Define Ecology.
  • 13. Warm Up (Jan. 12)
    • Water, Nutrients, Energy, and Appropriate Temperature.
    • Ecology is the study of the relationships that living organisms have with each other and their natural environment.
  • 14. Steps of the Scientific Method
  • 15.
    • The Scientific Method is a series of steps that scientists agree are a logical way to perform an experiment.
  • 16.
    • State the Problem or Question
    • Make Observations or Do Research
    • Form a Hypothesis
    • Test your Hypothesis or Experiment
    • Collect and Analyze Results
    • State your Conclusion
    • Communicate the Results
    Scientific Method
  • 17. Steps of the Scientific Method
    • 1. State the Problem : Develop a question or problem that can be solved through experimentation.
  • 18. Steps of the Scientific Method
    • 2. Make Observations or Do Research : Get information. Gather the “411”.
  • 19. Key Points for Making Observations
    • Observations are made with your five senses: sight, taste, hear, touch, smell.
    • Observations are Quantitative if they use numbers and Qualitative if they use descriptions.
    • Observations are made while you are gathering information
  • 20. Critical Thinking Example
    • PROBLEM: Why are students always late to class?
    • What is a quantitative observation for this situation?
    • What is a qualitative observation for this situation?
  • 21. Steps of the Scientific Method
    • 3. Form a Hypothesis : Predict a possible answer to the problem or question. This is usually written as a statement.
    • Example: If soil temperatures rise, then plant growth will increase.
  • 22. Key Points for Forming a Hypothesis
    • The hypothesis is an educated guess about the relationship between the independent and dependent variables.
    • A hypothesis is usually written as an IF/THEN statement.
  • 23. Steps of the Scientific Method
    • 4. Test you Hypothesis or Experiment : Develop and follow a procedure to test your hypothesis .
    • Include a detailed materials list.
    • The outcome must be measurable (quantifiable).
  • 24. What is Variable?
    • A VARIABLE is a factor in an experiment that can change.
    • There are two types of variables in an experiment: INDEPENDENT variable and the DEPENDENT variable.
  • 25. Independent Variable
    • The independent or manipulating variable is the factor that is intentionally changed by the person doing the experiment.
  • 26. Dependent Variable
    • The dependent or responding variable is the factor that may change because of changes made to the independent variable.
  • 27. Controls or Constants
    • CONTROLS or CONSTANTS are factors that scientists purposely keep the SAME in an experiment.
    • The purpose of a control is to ELIMINATE OUTSIDE FACTORS that may throw off the experiment.
  • 28. Steps of the Scientific Method
    • 5. Collect and Analyze Results : Modify the procedure if needed.
    • Confirm the results by retesting.
    • Include tables, graphs, and photographs.
  • 29. Steps of the Scientific Method
    • 6. State your Conclusion : Include a statement that accepts or rejects the hypothesis.
    • Make recommendations for further study and possible improvements to the procedure.
  • 30. Steps of the Scientific Method
    • 7. Communicate the Results : Be prepared to present the project to an audience.
    • Expect questions from the audience.
  • 31. SHOULD MY FRIEND DATE TAYLOR SWIFT?
    • Using the Scientific Method…
    • What’s the first step?
  • 32. Step 1: State the Problem or Question!
    • Should my friend date Taylor Swift?
    • Next step?
  • 33. Step 2: Make Observations or Do Research
    • PROS:
    • Pretty
    • Has a lot of money
    • Grammy-award winning artist
    • Lives in Nashville
    • CONS:
    • May be in a relationship
    • She may think he is stalker
  • 34. Step 3: Write a hypothesis.
    • If my friend dates Taylor Swift, then he will be happier! (and so will she) 
  • 35. Step 4: Test your Hypothesis or Experiment
    • Independent Variable: Dating Taylor
    • Dependent Variable: How much happier my friend gets than if he didn’t date her
    • Control: Not going on a date with Taylor
    • Variable: Date with Taylor
  • 36. Step 5: Collect and Analyze Results
    • Measure his happiness from the control. (No date with Taylor)
    • Measure his happiness from the variable. (Date with Taylor doing the same thing he was doing alone)
    • Compare happiness.
  • 37. Step 6: State your conclusion.
    • If my friend dates Taylor Swift then he will be happier! (and so will she)
    • CONFIRMED!
  • 38. Step 7: Communicate the Results
    • BRAG about your date with Taylor Swift to your friends!
  • 39. Wrap Up (Jan. 12)
    • What was one fact that you Learned today?
    • What was the most Interesting thing about today’s class?
    • How can you Apply or use the information that you learned today?
  • 40. Ecology Mr. Nettles
  • 41. Class Motto
    • Discipline fuels character!
    • Character builds hope!
    • Hope assures your future!
  • 42. Agenda- Tues., January 17, 2011
    • Warm Up
    • The Mindset of a Scientist
  • 43. Warm Up
    • What are the 7 steps of the scientific method?
    • What is a quantitative observation?
    • What is a qualitative observation?
  • 44. “ The Mindset of a Scientist”
  • 45. Instructions:
    • Form teams of two and brainstorm about a topic you want to explore.
        • The topic can be related to sports, movies, politics, food, a job you desire, etc.
    • State a problem related to your topic.
    • Use the internet to research 7 quantitative and 7 qualitative observations about your topic.
  • 46. Instructions:
    • Form a hypothesis related to your topic.
    • Start the process of setting up an experiment to test your hypothesis.
        • You need to indentify the independent variable, the dependent variable, and at least 5 controls (including the purpose of each).