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Dependent and Independent Variables Explained

Dependent and Independent Variables Explained. September 10, 2012. Variables are used in Math and Science!. A variable is… something that can be changed. In our math problems, the numbers we changed were called variables. 2+ 2 = 4. A constant is… something that does not change.

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Dependent and Independent Variables Explained

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  1. Dependent and Independent Variables Explained September 10, 2012

  2. Variables are used in Math and Science! A variable is… something that can be changed. In our math problems, the numbers we changed were called variables. 2+2=4 A constant is… something that does not change. In our math problems, the number we decided not to change could be called a constant.

  3. Science experiments use… Independent variables – the onefactor changed by the person doing the experiment. Dependent variables– the factor being measured in an experiment. Constants– all the factors that stay the same in an experiment.

  4. In our math problems we used independent and dependent variables too! Independent variable (The one number we changed) 2+2=4 Dependent variable Constant (The number that depended on the independent variable) (It stayed the same)

  5. Our Experiment A B C Constants water water water soil soil soil light light light daisy seed daisy seed daisy seed Independent Variable Miracle Gro Jobe’s Sticks name brand Dependent Variable Plant growth Plant growth Plant growth (most) (good) (little)

  6. Our Constants and Variables! Constants: The type and amount of dirt (same). The amount and timing of watering (same). + The type and amount of light (same). The amount of plant food given (same). Independent variable: The brand of plant food testing. (Miracle Gro, Jobes Stick, name brand) = Dependent variable: The health and growth of the plants.

  7. Here’s How it Works! Constants Independent Dependent Variable Variable Same types and amounts of: water, light, and soil Different plant foods tested. + = Health and growth of plants

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