Lecture Notes 2 Biology A Eaton Rapids High
Lecture Notes 2 Biology A Eaton Rapids High School K. Coppins
I. What is the Scientific Method? n n Organized approach for studying A. __________________ any topic of interest. ___________________ B. __________________ Series of general steps followed by scientists as they work. ___________________
II. Steps of the Scientific Method n The Big Question A. ______________ 1. Find something interesting to you. n 2. Observe it. n 3. Figure out what is interesting you so much and decide that you want to learn more. n
II. Steps of the Scientific Method n Research B. ______________ 1. n 2. n 3. n What do you already know? What do other people already know? What can you add to this knowledge?
II. Steps of the Scientific Method n Perform experiment C. ______________ hypothesis n 1. Come up with a _________. This is a statement of what you think is correct. You will try to find evidence to support this idea. A hypothesis may not require experiments, but instead further research into what is known.
II. Steps of the Scientific Method n C. Perform Experiments n 2. Parts of an experiment—an experiment should be reproducible. Materials n a. _______: What you need to perform the experiment. Procedure n b. _______: Detailed step-bystep instructions, including all measurements, that allow anyone to understand exactly copy you.
II. Steps of the Scientific Method n C. Perform Experiments n 2. Parts of an experiment—an experiment should be reproducible. n c. _____: A standard for Control comparison. How do you know if anything new happened without something to compare? Independent Variable n d. ___________: What you are changing. All other aspects of the experiment should be constant.
II. Steps of the Scientific Method n n Gather Data D. ____________ n 1. Data are facts, observations, and measurements. n 2. Anything that changes as a result of the independent variable is called a dependent variable. Draw Conclusions E. ____________ n 1. Does data support or refute hypothesis? n 2. Does this data suggest any trends? n 3. Does this answer The Big Question, or are more experiments required?
III. Trying it out A. n B. n C. n __________ The Big Question Research __________ Perform experiment __________ Hypothesis n 1. ___________ n 2. ___________ Materials Procedure n 3. ___________ Control n 4. ___________ Independent Variable n 5. ___________
III. Trying it out D. __________ Gather Data n 1. _________________ Make measurements/observations n 2. ____________ Record data Draw Conclusions n E. ___________ n 1. _________________ Does the data support or refute the hypothesis? __________________ Are there any obvious trends? n 2. _________________ Does it answer The Big Question? n 3. _________________ n
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