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Investigation Vocab.

CA 8th Grade Standard 9: Investigation and Experimentation Vocabulary.

WordDefinition
SCIENCE The knowledge gained by observing natural events to discover facts and formulate theories and laws.
SCIENTIFIC METHOD Steps scientists use to solve problems.
OBSERVATION Any use of the senses to gather information.
HYPOTHESIS A possible answer or explanation to a question.
CONTROLLED PARAMETERS The factors that are kept the same in a controlled experiment
VARIABLE PARAMETERS The one factor that changes between the groups in a controlled experiment.
DATA Any piece of information gotten through an experiment.
MASS The amount of matter in an object.
MATTER The stuff everything is made of.
VOLUME The amount of space something occupies.
DENSITY Mass per unit volume.
TEMPERATURE Measure of how hot or cold something is.
MODEL A representation of an object or system.
THEORY An explanation for many hypothesis and observations that have been supported by testing.
LAW A summary of many experimental results and observations, tells how something works.
INDEPENDENT VARIABLE In an experiment the factor that is deliberately changed.
DEPENDENT VARIABLE In an experiment the factor that changes as a result of one or more factors being changed.
X and Y AXIS In a graph the x axis is the horizontal line and the y axis is the vertical line.
LINEAR GRAPH On a graph when the relationship between the independent and dependent variable is a straight line.
NONLINEAR GRAPH On a graph then the relationship between variables is not a straight line.
MEAN Average.
MEDIAN The value of the data point in the middle when data are placed in order from smallest to largest.
MODE The most frequently occuring number in the data.
SLOPE The measure of the slant of a line; the ration of rise over run.
HORIZONTAL AND VERTICAL Horizontal a line going left to right and vertical is a line going up and down.
Created by: smabry
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