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Station 1 Scientific Method
scientific method vocabulary
24
Science
7th Grade
01/20/2008

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Term
Experimental Design Method
Definition
A systematic method of investigation using experimentation, observation, and deductive reasoning (making inferences).
Term
Qualitative Observations
Definition
Observation made using the 5 senses.
Term
Quantitative Observations
Definition
Definition 3
Observations made using numbers, measuring tools, and amounts.
Term
Inference
Definition
An interpretation or explanation using observations and prior knowledge.
Term
Hypothesis
Definition
A possible explanation for observations that relate to a scientific question; an educated guess about the outcomes of an experiment.
Term
Prediction
Definition
A statement or claim that a particular event will occur in the future.
Term
Variable
Definition
Any factor in an experiment that can change.
Term
Manipulated (Independent) Variable
Definition
The variable that the experimenter changes.
Term
Responding (Dependent) Variable
Definition
The variable that changes as a result of the independent variable being changed; a response.
Term
Constants
Definition
A variable that remains the same each time the experiment is conducted.
Term
Repeated Trials
Definition
The number of times and experiment is repeated...to eliminate errors.
Term
Control Group
Definition
The group that the others are compared to or the group that receives no special treatment. It is a standard of comparison.
Term
Test Group
Definition
The group(s) that receive special treatment or that are changed in some way.
Term
Experimental error
Definition
mistakes that skew the results that are unrelated to the variable that was manipulated
Term
Data
Definition
facts, figures, and other evidence gathered during observations; information
Term
Data Analysis
Definition
finding the mean, median, mode, and best from data collected. explanations of skewed data and possible reasons for experimental errors.
Term
Mean
Definition
average of the data... add the numbers and divide by the number of data collected
Term
median
Definition
the middle number... rank the data from smallest to largest and choose the middle... if an even amount average the two in the middle
Term
mode
Definition
the most frequently occuring number in a set of data
Term
Scientific Theory
Definition
a well tested scientific concept that explains a wide range of observations.
Term
Science
Definition
the study of the natural world; systematic knowledge derived from experimentation, observation, and study. Ability to solve problems
Term
X axis
Definition
the horizantal (side to side) axis on a graph; the independant variable is placed here.
Term
Y axis
Definition
the vertical (up and down) axis on a graph; the dependant variable is placed here.
Term
Conclusion
Definition
a summary of the experimental results.
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