states of matter & phase changes solid, liquid, & gas
TRANSCRIPT
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States of Matter & Phase Changes
Solid, Liquid, & Gas
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Temperature The amount of kinetic energy
(movement) of the particles.
Higher temperature- faster motion
Lower temperature- slower motion
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GAINING THERMAL ENERGY
Particles move faster
temperature rises
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Melting
Change from solid to liquid
Increase in kinetic energy
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Vaporization Liquid becomes a
gas
2 TYPES
1. Evaporation- takes place at surface & below boiling point.
2. Boiling- occurs below the surface and at a certain temperature
Gaining thermal energy
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Sublimation A solid changing
DIRECTLY into a gas.
Ex: Dry Ice
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LOSING THERMAL ENERGY
Particles move slower
temperature drops
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Freezing
liquid to solid
Freezing Point- temp when liquid changes to solid
Losing thermal energy
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Condensation
gas changes into a liquid
Ex- Beads of water that form on a glass
Losing thermal energy
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Deposition
Gas changing directly into a solid
Ex: frost
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Brain Pop Videohttp://glencoe.mcgraw-hill.com/sites/0078778085/student_view0/brainpop_movies.html#
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Solid, Liquid, or Gas 1.) Which state of matter
does this picture represent?
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Solid, Liquid, or Gas 2.) Which state of matter
does this picture represent?
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Solid, Liquid, or Gas 3.) Which state of matter
does this picture represent?
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Identify the state of matter that matches each
statement.
4.) Has a definite shape & volume
5.) Completely fills the container
6.) Has a definite volume but no definite shape because it takes on the shape of the container
7.) Particles have a lot of energy & move very fast; there is space between the particles
8.) Particles have enough energy to slide past each other but are still touching
9.) Particles have very little energy & vibrate in fixed positions
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Heat+ Heat
Gaining thermal energy
Particles move faster & temperature rises
- Heat Losing thermal
energy
Particles move slower & temperature drops
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Melting Change from a solid to a
liquid
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Crystalline Solid Crystalline Solid-
solids in which the particles are arranged in a repeating pattern.
Forms crystals
Ex- salt, sugar diamonds, sand, snow
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Amorphous Solid
Amorphous Solid- particles are arranged randomly
Does not form crystals
Ex- rubber, glass, plastics
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Viscosity Viscosity- a liquids
resistance to flow.
High viscosity- flows slow
Low viscosity – flows quickly
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Plasma Plasma- an
electrically charged gas that exists at extremely high temperatures
Ex- lightning, stars, neon lights, the northern lights,