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to use of your senses to gather quantitative or qualitative information


a possible explanation for what you observe (that you might assume is true)


an attitude of doubt

Scientific method

the steps scientists use to create explanations based on the evidence they gather


evidence gathered through observations (especially during experiments)

Scientific literacy

understanding basic scientific terms and principles


the methodological studying of the natural world through experimentation and verification of facts.


true statement


A simple statement predicting the result of a controlled scientific experiment.

Scientific Law

scientific statement that is well tested, supported, and verifiable.

Qualitative Observations

observations made by the 5 senses. (seeing, feeling, touching, smelling, tasting.)

Quantitative Observations

observations made by using measuring instruments. (number-based observations)

Independent Variable

part of an experiment that the experimenter changes.

Dependent Variable

changes as a result of the changes in the Independent Variable.


a standard to compare with the results in an experiment.


is used to represent things we cannot directly study.


something that can affect how the results of an experiment are viewed


visual display of information or data

Manipulated variable

alternative term for independent variable

Responding Variable

alternative term for the dependant variable


this variable data is plotted on the horizontal (x) axis of a graph


this variable data is plotted on the vertical (y) axis of a graph


to repeat a research study, usually with different participants and in different situations, to confirm the results of the original study

sample size

The number of subjects used in an experiment or study. Generally, the larger the better.


the quality of lacking any predictable order or plan,best defense against bias

bar graph

used to display data that is not continuous or without units

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