Dog Days: scientific method scenarios

Kilo; Anella’s dog, had become picky with his food. He no longer wanted to eat his kibbles. As Anella expressed her concern about her dog to her neighbor, her neighbor confessed that her dog Georgia was doing the same thing.

Wondering why they didn’t want to eat their kibbles anymore, the owners remembered that

after holidays, they got lots of leftovers. Once they ran out, the dogs were reverted back to kibbles. Anella and her neighbor hypothesized that because of Kilo and Georgia’s heavy exposure to raw meat and then having them being suddenly replaced by food that had less worth to them, they was rebelling in order to regain their human food intake.

To confirm Anella and her neighbor’s theory that their dogs was becoming picky,

Anella gave her dog 3 meals for 1 day which only consisted of only kibbles, and her neighbor gave her dog 3 meals for 1 day with kibbles and meat.

When Kilo presented only kibbles, he refused to eat.

When Georgia was presented kibbles and meat, she begged to get her meals.

  1. What was the initial observation (problem)?
  2. What was the control? 
  3. What was the independent variable?
  4. What was the dependent variable?
  5. What conclusion should be made about the investigation?
  6. How could the experimental design be improved?

 

  1. What was the initial observation (problem)? Kilo and Georgia are no longer eating their meals because lack of human food
  2. What was the control? Kilo: he was given only kibbles
  3. What was the independent variable? Meat included with the kibbles
  4. What was the dependent variable? Whether or not the dogs wanted to eat their food
  5. What conclusion should be made about the investigation? The hypothesis was true; both dogs had become picky and favored meals with human food with them instead of just plain kibbles. Although the hypothesis was true, not enough tests were conducted to give solid evidence to the hypothesis
  6. How could the experimental design be improved? Expand number trials, expand number of days the trial would run for, compare the same breed of dog to achieve the same weight + nutritional requirements, the same diet control before experiment was conducted / whether or not they ate before, having the same amount of food each time, and having the ratio of meat to kibbles consistent.

 

 

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