  Does fertilizer make a plant grow taller?  Possible variables?  Independent variable?  Dependent variable? Sample 1.

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Presentation transcript:

  Does fertilizer make a plant grow taller?  Possible variables?  Independent variable?  Dependent variable? Sample 1.

  Does driving a car faster affect gas mileage?  Possible variables?  Independent variable?  Dependent variable? Sample 2.

  Covering a scrap with a band aid decreases healing time?  Possible variables?  Independent variable?  Dependent variable? Sample 3.

  Does amount of sleep affect athlete’s speed?  Possible variables?  Independent variable?  Dependent variable? Sample 4.

  Does adding salt to water affect how long it takes to boil?  Possible variables?  Independent variable?  Dependent variable? Sample 5.