18 terms

Unit 1 Quizlet Vocabulary List

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Terms in this set (...)

mass
How much or measure of the amount of matter in an object.
volume
A measure of the size of a body or region in three dimensional space.
density
It is the ratio of the mass of a substance to the volume of the substances.
temperature
It is a measure how hot or cold it is.
model
It is a pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept.
theory
It is a system of ideas that explain many related observations and is supported by a large body of evidence acquired through scientific investigation.
law
It is a descriptive statement or equation that reliably predicts events under certain conditions.
Independent Variable (I.V.)
It is in an experiment, the factor that is deliberately manipulated.
Dependent Variable (D.V.)
Is in an experiment, the factor that changes as a result of manipulation of one or more other factors.
mean
It is the number obtained by adding up the data for a given characteristic and dividing this sum by the number individuals.
median
It is the value of the middle item when data are arranged in order by size.
mode
It is the most frequently occurring value in a data set.
slope
It is a measure of the slant of a line; the ratio of a rise over run
Qualitative Observation (QL)
It is an observation using your five senses smelling, tasting, hearing, looking, and feeling.
Quantitative Observation (QT)
It is an observation with numbers.
hypothesis
It is a testable idea or explanation that leads to scientific investigation.
Controlled Variables (Parameters)/ "Constant"
The thing that will be the same throughout the experiment.
Comparison Group / "Control" Group
The one thing or material you compare it to.

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