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Semester Exam Part 2.3
Chapter 2, Section 3
11
Science
6th Grade
12/13/2009

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Term
Physical Change
Definition
Any change that alters the form or appearence of matter, but doesn't change the substances in it.
Term
2 examples of Physical Change
Definition
crushing, dissolving
Term
Chemical Change
Definition
A change in matter that produces one or more new substances.
Term
1 example of Chemical Change
Definition
Tarnishing
Term
Law of Conservation of Mass
Definition
The fact that \matter is not made or destroyed in any change.
Term
Temperature
Definition
Measure of the average energy of random motion of particles of matter.
Term
Thermal energy
Definition
The total energy of all the particles in an object.
Term
Thermal energy
Definition
The total energy of all the particles in an object.
Term
How does thermal energy flow?
Definition
From warmer matter to cooler.
Term
Endothermic Change
Definition
A change in which energy is taken in.
Term
Exothermic Change
Definition
Releases energy
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