science

an experiment where only one variable is changed and all others are kept constant down

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  1. i don't get it

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    posted by shakayla
  2. Did you read the title of the article that Bobpursley posted?

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    posted by Ms. Sue
  3. yes and i clicked on it i do not see it

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    posted by shakayla
  4. From the above website:

    "Biology-Mr.Willets

    "Single Variable Experiment

    "A single variable experiment is one in which the experimenter (you) changes only one factor (the single variable) in order to see its effect on the experimental subjects. To do this, there must be two groups of subjects. These two groups must be as similar as possible. It is easier to get two groups to be similar if large numbers of subjects are used (the more, the better, within limits of space etc.) Large groups are also helpful because if there is one unusual member of the group, it will not affect the average all that much."

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    posted by Ms. Sue
  5. what are devices that increase the five senses' abilities to obtain information

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    posted by shakayla
  6. eye glasses
    hearing aids
    magnifying glasses
    telescopes
    microscopes

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    posted by Ms. Sue
  7. no i think it starts with an i

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    posted by shakayla
  8. instruments?

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    posted by Dr Russ

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