 Cut out each scenario. Glue into your notebooks (in any order). Leave lines to write on between each scenario based on the table below. CharaterLines.

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Presentation transcript:

 Cut out each scenario. Glue into your notebooks (in any order). Leave lines to write on between each scenario based on the table below. CharaterLines to write on SmithersFour (4) Homer SimpsonFour (4) Bart SimpsonFive to Six (5-6) Lisa SimpsonFive to Six (5-6) Krusty the ClownFive to Six (5-6)

 We use the scientific method every day – in our REAL lives… › Cleaning our clothes › Car repairs › Home repairs (Fixing a plumbing leak) › Gardening › Cooking (What tastes good, what doesn’t, how to combine items, how long to cook)

 Do you try a whole bunch of things all at once?  Or do you try one thing at a time, in a systematic way?  Do you remember the ways that worked?  How about the ways that did not work?  Do you pass on that information to others?

 These things are all the Scientific Method – but now we are going to put SCIENTIFIC terms to each one of the steps we already do in our lives.  And we are going to learn how to identify them.

 Control › “No change” › What you compare your test to  Independent Variable › “I” change it, “I” control it › “I” manipulate it  Dependent Variable › Responds to what was changed › Depends on what was changed

 Homer Simpson: › 1. Control Group:  Water (no change group) › 2. Independent Variable:  Coconut Juice (use it or not) › 3. Dependent Variable:  Slime (Is it still there? Did it respond?) › 4. Conclusion:  Coconut juice did not remove the slime from the shower.

 Smithers › 1. Control Group:  Group B (no change group) › 2. Independent Variable:  Super Juice (Did they have it or not?) › 3. Dependent Variable:  Amount of work completed (Production) › 4. Conclusion:  Super Juice DID NOT increase productivity. Group A: Super Juice 1,587 stacks Group B: Control 2,113 stacks

 Lisa Simpson › 1. Control Group:  No Rogooti (no change group) › 2. Independent Variable:  Use/Not use Rogooti (Manipulated variable) › 3. Dependent Variable:  Amount of hair growth (Responding variable) › 4. How would you do the experiment?

 Bart Simpson › 1. Control Group:  Non-microwaved mice › 2. Independent Variable:  Microwaving (how long, yes or no) › 3. Dependent Variable:  Strength of Mice › 4. Conclusion:  Inconclusive › 5. How could this experiment be improved? Non-Micro Mice Micro Mice 8 7 Mouse Strength

 Krusty › 1. Control:  Group A (Original powder) › 2. Independent Variable:  Itching powder (New versus Old) › 3. Dependent Variable:  How long they itched for (What results are we looking for?) › 4. Does the data support the advertisement claims?  Yes AND No… why? › 5. How could you improve this experiment?

 How is an experiment controlled?  How does one scientist take another scientists work and expand upon it?  Open books to page 9

ScientistExperiment Results RediSpontaneous Generation does NOT occur (Maggots appear when flies “touch” the meat. ) NeedhamSpontaneous generation does occur (Boiled gravy in a closed container – “animacules” appear… believed he didn’t boil it enough) SpallanzaniSpontaneous generation does NOT occur (Boiled gravy in a closed flask – no growth, boiled gravy in an open flask – growth – showed it came from the air) PasteurSpontaneous generation does NOT occur (Special flask – showed growth comes from “things” (microorganisms) falling into the gravy, not the air.)