Variables in A Slime Experiment
Variable is the name given for any part of an experiment that changes. For example, the following question identifies what is happening as well several variables which are identified.
Question: If a glue solution and a borax solution are mixed, what effect would the ratio of the solutions have on how easily the slime flows?
Variables in a Slime Experiment:
1. glue solution —type of glue, concentration of the solution
2. borax solution–source of borax, concentration of the solution
3. ratio of solutions– Examples are: 1 part glue + 1 part borax; 2 parts glue + 1 part borax; etc….
4. thickness of slime–Another term for this would be viscosity, which is the resistance to flowing.
Types of Variables
independent variable (IV) A variable that is purposely changed in an experiment to
cause another variable to change. This will be the different ratios of glue and borax mixed together.
dependent variable (DV) A variable that changes because of changes in the
independent variable. This will be the thickness (viscosity) of the slime produced.
controlled variables All variables that you do not want changed. This would be how the glue and borax solutions are made as well as any and all materials used to do the experiment.
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