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mcke mcke
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6 years ago
Ruben has a new puppy and wants to feed it the best possible food. He decides on an experiment where he will feed it the very best canned food plus a dietary supplement of vitamins recommended by a veterinarian.
 
  Which of the following best describes Ruben's project?
  A) Ruben needs to take careful measurements of the puppy's weight and height at least once a week for it to be a good experiment.
  B) This is an example of an excellent, controlled experiment as it is written.
  C) Ruben needs to use his mother's 6-year-old chocolate shar-pei to feed a standard diet so he can compare his puppy with a control dog.
  D) Ruben needs to control for the amount of exercise, sunshine, water, and care that the puppy gets each week, so that they are equal from week to week.
  E) This is not an experimentthere are no controls or replicates.
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nena1107nena1107
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6 years ago
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mcke Author
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6 years ago
Thanks for your help!!
mikeh209
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Yesterday
Thank you, thank you, thank you!
lipop
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2 hours ago
Correct Slight Smile TY
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