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scientific inquiry

begins with a question followed by gathering evidence about the natural world and proposing explanations based on the evidence.


a possible explanation or answer to a scientific question

independent variable

The one factor that is deliberately changed to test a hypothesis

dependent variable

factor that may change as a result of a change in the independent variable

controlled experiment

an experiment in which only one variable is changed at a time


error in the design of the experiment

repeated trial

a repetition of an experiment


an attempt by a different group of scientists to conduct the same experiment

scientific explination

a generalization that makes sense of observations by using logical reasoning


picture of data used to identify trends, make predictions, and recognize anomalous, or inconsistant data

linear graph

A line graph in which the data points yield a straight line.

nonlinear graph

A line graph in which the data points do not fall along a straight line.


Any data point that is not part of the trend

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