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For more information, please see full course syllabus of AP Environmental Science
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Lecture Comments (2)

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Last reply by: Bryan Cardella
Sun May 3, 2015 9:31 PM

Post by Sebastian cranston on May 3, 2015

Hi, I just signed up and when clicking on a video, it won't load and says: "error #2032" what can i do? I have the exam tomorrow?!

Scientific Method

  • The scientific method has its origins in Babylonia and Ancient Egypt. Much of its influence in modern science comes from Ancient Greece. The Scientific Revolution (Galileo, Gilbert, Harvey, Bacon) helped make it what it is today. Scientific investigation is a process that involves testability and disprovability
  • The steps of the scientific method include: observe, question, hypothesize, experiment (with a control and experimental group, involving independent and dependent variables), interpret data, and draw conclusions
  • Science is based on inductive reasoning. Proof with inductive reasoning is not absolute, but it has a high degree of probability
  • Scientific research leads to theories and theories can lead to more research. Models (such as computer simulations) can make sense of data and even project future data based on extrapolation
  • Science has a fair degree of confidence but it does not explain everything 100% of the time. Objectivity is the goal with data. Data is measured with a degree of uncertainty (in order for it to be meaningful.) Accuracy and precision are important to consider
  • Pseudoscience is false science not based on reliable data.

Scientific Method

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Origin of the Scientific Method 0:04
    • Babylonia and Ancient Egypt
    • Western Tradition
    • Scientific Revolution
    • Francis Bacon
    • Science is About Knowing
    • Disprovability
  • Steps of the Scientific Method 5:43
    • Observe
    • Formulate a Questions
    • Hypothesize
    • Design an Experiment
    • Collect Data
    • Interpret Data
    • Draw Conclusions
    • Future Experiments
  • Inductive vs. Deductive Reasoning 14:21
    • Inductive Reasoning
    • Deductive Reasoning
    • Proof with Inductive Reasoning
  • Theories and Models 19:00
    • Scientific Theory
    • Models
  • Uncertainty and Accuracy 22:08
    • Objectivity is the Goal
    • Degree of Uncertainty
    • Accuracy
    • Precision
  • Pseudoscience 28:48
    • Pseudo
    • Examples