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Details

Nature of Science
Chapter 1
19
Science
9th Grade
05/26/2010

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Cards

Term
Scientific Method
Definition

An organized set of investigation procedures

 

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Term
Hypothesis
Definition

a possible explanation for a problem using what you know and what you observe

 

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Term
Experiment
Definition

An organized procedure for testing a hypothesis

 

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Term
Variable
Definition

a quantity that can have more than a single value

 

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Term
Dependent variable
Definition

Value that changes as a result of changes in other variables

 

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Term
Independent variable
Definition

value that the experimenter changes to affect the measure of another variable

 

 

Term
Constant
Definition
a factor that does not change when other variables change
Term
Control
Definition

the standard by which the test results can be compared

 

Term
Bias
Definition

occurs when what the scientist expects changes how the results are viewed

 

 

Term
Model
Definition

representation of an idea, event, or object that helps people better understand it

 

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Term
Theory
Definition

an explanation of things or events based on knowledge gained from many observations and investigations.  NOT a guess!

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Term
Scientific Law
Definition

a statement about what happens in nature and that seems to be true all the time, without explaining why

 

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Term
Technology
Definition

application of science to help people

 

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Term
Standard
Definition

an exact quantity that people agree to use to compare measurements

 

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Term
SI (Systeme Internationale d'Unites)
Definition

standards that are universally accepted and understood by scientists throughout the world

 

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Term
Volume
Definition

the amount of space occupied by an object

 

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Term
Mass
Definition

a measurement of the amount of matter in an object

 

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Term
Density
Definition

mass per unit volume

 

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Term
Graph
Definition

a visual display of information or data

 

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