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- NeSA List 1
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Prediction
a statement about what may happen in the future based on prior experience or knowledge
Repeated Trials
the number of times procedures are repeated, usually 3-5, during a scientific experiment in order to achieve a more accurate results
Controlled Variables
the variables in an experiment which are held constant to test the effect of the independent variable upon the dependent variable
Dependent Variable
the variable, within a scientific experiment, which is affected by changes in the independent variable of the experiment
Independent Variable
a variable that is changed by the person conducting the experiment and not changed by other variables in the experiement
Graduated Cylinder
a tall, narrow container with a volume scale used to measure liquids
Qualitative observation
characteristics of objects or events, other than actual numerical measurements
Quantitative Observation
characteristics of objects or events which can be measured using numeric values
Conclusion
a decision made after considering relevant facts and evidence
Inference
a conclusion drawn from evidence or reasoning
Law
a descriptive generalization about how some aspect of the natural world behaves under stated circumstances
Scientific Critique
an analysis of the strengths and weaknesses of a scientific investigation
Constant Speed
rate of motion where the same amount of distance is traveled in the same amount of time (speed = distance/time)
Velocity
rate of change of position of an object in a specified direction