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what are variables in science experiments? please give me an example like my experiment is how to tell if a person is lying by his body language.thank you. need answer badly!!!

  • science -

    You might begin with this GOOGLE Search:

    http://www.google.com/search?q=examples+of+variables+in+science+experiments&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

    Sra

  • science -

    i think i know what that is. its like when u set up an experiment, its the things that u r able to change in the experiment. like if u wer testin the boilin point of water and the boilin point of viniger, the variable wud be the water and the viniger. do u get me? hope this helps. x

  • science -

    can you tell me if i did this correct.my experiment is about how can you tell if someone is lying by their body language. my independent variable will be if i interview a person in a dim light while all person interview will be on regular or normal light. then my dependent variable will be what happens or what changes on their answers when one is interviewed in a dim light , then my controlled variable is every person was asked the same question . did i do it right because that is how i understand it. please help i need the answer badly! thanks for all your help !!!!

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