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Lesson 6 vocab
Lesson 6 vocab for Mrs. Wojo's General Science class
22
Science
9th Grade
11/02/2012

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Term
boiling point
Definition
the temperature at which a substance changes from a liquid to a gas under normal atmospheric pressure
Term
Celsius scale
Definition
The temperature scale used by scientists and by people in many countries in which water freezes at 0 degrees and boils at 100 degrees
Term
condensation
Definition
a change from a gas to a liquid
Term
conduction
Definition
the movement of heat energy from one molecule to the next
Term
conductor
Definition
material through which heat travels easily
Term
contract
Definition
to become smaller in size
Term
convection
Definition
flow of energy that occurs when a warm liquid or gas rises
Term
degree
Definition
a unit of measurement on a temperature scale
Term
evaporate
Definition
to change from a liquid to a gas
Term
expand
Definition
to become larger in size
Term
Fahrenheit scale
Definition
The temperature scale commonly used in the United States, in which water freezes at 32 degrees and boils at 212 degrees
Term
freezing point
Definition
the temperature at which a liquid changes to a solid
Term
heat
Definition
a form of energy resulting from the motion of particles in matter
Term
heat source
Definition
a place from which heat energy comes
Term
insulator
Definition
material that does not conduct heat well
Term
melting point
Definition
the temperature at which a solid changes to a liquid
Term
nuclear fission
Definition
the reaction that occurs when the nucleus of an atom splits and energy is released as heat and light
Term
nuclear fussion
Definition
The reaction that occurs when atoms are joined together and energy is released
Term
radiation
Definition
the movement of energy through a vacuum
Term
temperature
Definition
a measure of how fast an object's particles are moving
Term
thermometer
Definition
a device that measures temperature
Term
vacuum
Definition
space that contains no matter
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