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13 terms

Scientific Investigation Terms

STUDY
PLAY
Data
Facts, figures, and other evidence gathered as a result of an experiment
Line Graph
a graph that shows change over time
Constants
factors of an experiment that are kept the same and never change (also called controlled variables)
Control
the part of an experiment that serves as a comparison point
Bar Graph
a graph comparing the values of a dependent variable for each independent variable
Independent Variable
the variable that is changed or manipulated on purpose
Dependent Variable
the variable that RESPONDS (reacts) to the changes that were made
Hypothesis
an educated guess, that can be tested, about the results of an experiment
Variable
a term used to describe each factor that changes or can change in an experiment
Qualitative Observation
observations based on what you see, hear, feel, smell, taste
Quantitative Observation
observations using numbers or amounts
Control Group
A group separated from the rest of the experiment where the independent variable being tested cannot influence the results
Placebo effect
experimental results caused by expectations alone

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