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Physical Science
Chapter 1- The Nature Of Science(Vocabulary)
16
Science
9th Grade
01/26/2006

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Term
Scientific Method
Definition
The Scientific Method is an organized set of Investigation Procedures. There are 6 steps in the Scientific Method.
Term
Hypothesis
Definition
A Hypothesis is a possible explaination for a problem using what you know and what you observe.
Term
Experiment
Definition
An experiment tests the effect of one thing on another using controlled conditions.
Term
Variable
Definition
A variable is a Quantity that can have more than a single value.
Term
Dependent Variable
Definition
A Dependent Variable is the amount of growth in an experiment. Its value changes according to the changes in the other variables.
Term
Independent Variable
Definition
The independent variable is the variable that you change to see how it will affect the dependent variable.
Term
Constant
Definition
A factor that does not change when the other variables change is called a Constant.
Term
Model
Definition
represents an idea, event, or objest to help people understand better
Term
Theory
Definition
Explaination of things or events based on knowledge gained from many observations and investigations.
Term
Scientific Law
Definition
A statement about what happens in nature and that seems to be true all the time.
Term
Technology
Definition
The application of science to help people.
Term
standard
Definition
an exact quantity that people agree to use for comparison
Term
SI
Definition
International System of Units
Term
Volume
Definition
amount of space an object takes up
Term
Mass
Definition
Measurment of the quantity of matter in objects
Term
Density
Definition
Mass per-unit volume of an object
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