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Chapter 9 Vocabulary

Teacher: Mrs. Wallace
Across
Material that does not conduct heat well.
Material through which heat travels easily.
Space that contains no matter.
The reaction that occurs when atoms are joined together and energy is released.
A measure of how fast an object's particles are moving.
To become smaller in size.
Flow of energy that occurs when a warm liquid or gas rises.
The temperature scale commonly used in the US, in which water freezes at 32* and boils at 212*.
The temperature at which a solid changes to a liquid.
A device that measures temperature.
To become larger in size.
To change from a gas to a liquid.
A form of energy resulting from the motion of particles in matter.
The temperature scale used by scientists and by people in many countries, in which water freezes at 0* and boils at 100*.
The temperature at which a substance changes from a liquid to a gas under normal atmospheric pressure.
Down
A unit of heat; the amount of heat needed to raise the temperature of 1 g of water by 1*C.
To change from a liquid to a gas.
The movement of heat energy from one molecule to the next.
The reaction that occurs when the nucleus of an atom splits and energy is released as heat and light.
A place from which heat energy comes.
The temperature at which a liquid changes to a solid.
The movement of energy through a vacuum.
A unit of measurement on a temperature scale.