Physical States Of Matter

Basics of solid, liquid and gas including info about gas and temperature relationship for 8th grade science - based on McDougal Littell series

1. Physical States of Matter
Ms. Wells, Science

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

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

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

5. 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

6. 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!

8. 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!

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