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science

QuestionAnswer
Observational investigation an experiment that is used to discover info about objects or events,by using one or more of your 5 sences
experimental investigation an experiment that tests a hypothesis to see if changes in the independent variable affect the outcome (the dependent variable)
variables things in an experiment that change or can be changed
IV the variable that I, the experimenter, change on purpose at the beginning of the experiment to see if it will affect anything
DV the variable that changes or responds to what the scientist did
hypotheses a prediction of how the IV will affect the DV
constants parts of the experiment that does NOT change
control An experiment is done without testing the IV to see what the normal outcome is.
repeated trials the number of times you do the experiment or the number of objects or organisms that are tested.
Created by: bbms
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