Unit 1- States of Matter

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26 Terms

1
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Boiling Point

The temperature at which a liquid changes to a gas

<p>The temperature at which a liquid changes to a gas</p>
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melting point

The temperature at which a solid becomes a liquid

<p>The temperature at which a solid becomes a liquid</p>
3
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Boiling

vaporization that occurs throughout a liquid

<p>vaporization that occurs throughout a liquid</p>
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Condensation

The change of state from a gas to a liquid

<p>The change of state from a gas to a liquid</p>
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Deposition

The change of a substance from a gas directly to a solid

<p>The change of a substance from a gas directly to a solid</p>
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Energy

The ability to do work or cause change

<p>The ability to do work or cause change</p>
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Evaporation

The change of a substance from a liquid to a gas

<p>The change of a substance from a liquid to a gas</p>
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Fluid

A substance that flows

<p>A substance that flows</p>
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Freezing

The change of state from a liquid to a solid

<p>The change of state from a liquid to a solid</p>
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Gas

A state of matter with no definite shape or volume

<p>A state of matter with no definite shape or volume</p>
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liquid

A state of matter that has no definite shape but has a definite volume.

<p>A state of matter that has no definite shape but has a definite volume.</p>
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Kinetic Energy

energy of motion

<p>energy of motion</p>
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Kinetic Theory of Matter

states that all of the particles that make up matter are constantly in motion

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Mass

The amount of matter in a substance

<p>The amount of matter in a substance</p>
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Melting

The change in state from a solid to a liquid

<p>The change in state from a solid to a liquid</p>
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Melting Point

The temperature at which a solid becomes a liquid

<p>The temperature at which a solid becomes a liquid</p>
17
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Molecule

group of two or more atoms that form the smallest identifiable unit of a pure substance

<p>group of two or more atoms that form the smallest identifiable unit of a pure substance</p>
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Molecular Motion

The motion of the particles found in matter

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Phase Change

a change from one state (solid or liquid or gas) to another without a change in chemical composition

<p>a change from one state (solid or liquid or gas) to another without a change in chemical composition</p>
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Plasma

gases that have been so energized that their atoms have been stripped of some or all electrons.

<p>gases that have been so energized that their atoms have been stripped of some or all electrons.</p>
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Pressure

the amount of force exerted per unit area of a surface

<p>the amount of force exerted per unit area of a surface</p>
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Solid

A form of matter that has a definite shape and volume

<p>A form of matter that has a definite shape and volume</p>
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Sublimation

A change directly from the solid to the gaseous state without becoming liquid

<p>A change directly from the solid to the gaseous state without becoming liquid</p>
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Thermal Energy

The total energy of motion in the particles of a substance

<p>The total energy of motion in the particles of a substance</p>
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Vaporization

a physical process that results in the phase transition of a substance from a liquid to a gas.

<p>a physical process that results in the phase transition of a substance from a liquid to a gas.</p>
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Volume

The amount of space an object takes up

<p>The amount of space an object takes up</p>