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Science Chapter 1 Exam
Science Chapter 1 Exam Review
12
Physics
8th Grade
12/10/2011

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Term
Physical science 
Definition
the study of matter and energy and how they interact 
Term
model
Definition

represent of an object.

Ex. Map, globe, picture, etc

Term
observations
Definition
you use all your senses 
Term
hypohthesis
Definition
an educated guess
Term
theory
Definition

a well tested explanation that may or may not happen

Ex. the sun rising and setting, the big bang theory

Term
scientific law
Definition

always happens 

ex. Newton's law of gravity

Term
experiment 
Definition
something that tests a hypothesis
Term
control
Definition
used as a constant and unchanging standard of comparison in an expirement
Term
constant
Definition
not changing or varying
Term
independent variable 
Definition
a  variable thats intentionally changed to observe its effect on the dependent variable
Term
dependent variable
Definition
 the event studied andexpected to change when the independent variable ischanged
Term
Scientific Process
Definition

1. Pose a Quesion

2. Make a hypothesis

3. Design an expirement

4. Observe and collect data 

5. Make a conclusion

6. Communication 

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