Physical States of Matter Ms. Wells, Science

States of Matter Different forms of matter: Solid Liquid Gas State depends on 2 things: Particle (atoms/molecules) arrangement Particle motion

Different forms of matter:

Solid

Liquid

Gas

State depends on 2 things:

Particle (atoms/molecules) arrangement

Particle motion

Solid Matter Fixed volume, Fixed shape Particles packed together tightly – usually in a repeating pattern Examples: wood, glass, salt, plastic

Fixed volume, Fixed shape

Particles packed together tightly – usually in a repeating pattern

Examples: wood, glass, salt, plastic

Solid Matter Particles vibrate in place remember – matter is always in motion! Want to separate the particles in a solid? BREAK it!

Particles vibrate in place

remember – matter is always in motion!

Want to separate the particles in a solid? BREAK it!

Liquid Matter Fixed volume, changing shape Particles can move from place to place Particles attracted to each other, but more easily separate Take the shape of the container its put in Examples: milk, oil, honey, water

Fixed volume, changing shape

Particles can move from place to place

Particles attracted to each other, but more easily separate

Take the shape of the container its put in

Examples: milk, oil, honey, water

Gas Matter Volume changes , shape changes Examples: air, oxygen, water vapor Particles always push outward on container Spread to fill container if there is more space Or pack closer together when there is less space = PRESSURE from the pushing!

Volume changes , shape changes

Examples: air, oxygen, water vapor

Particles always push outward on container

Spread to fill container if there is more space

Or pack closer together when there is less space = PRESSURE from the pushing!

Pressure: Gases and Temperature Increased temperature (add heat) Particles speed up (more energy) = Volume increases! Decreased temperature (remove heat) Particles slow down (less energy) = Volume decreases! … More about this in Chapter 2!

Increased temperature (add heat)

Particles speed up

(more energy)

= Volume increases!

Decreased temperature

(remove heat)

Particles slow down

(less energy)

= Volume decreases!

The End! Matter matters because it is (almost) everything.