By: Jacob Martin
8th GradeTHE STATES OF MATTER

 A solid is the state of matter that has a definite shape and
volume.
SOLIDS

 The particles are very close together because they have a very
strong attraction for each other.
 Since they are so close, they cannot move around. So they just
vibrate in place.
PROPERTIES OF SOLIDS

 There are two types of solids: Crystalline and Amorphous.
TYPES OF SOLIDS
Crystalline Amorphous
Particles in a repeated
pattern of rows
Particles have no special
arrangement.
Particles don’t move around Particles don’t move around
Ex: iron, diamond, ice Ex; glass, rubber, wax

 Rocks
 Wood
 Pillows
 People
 Pizza
EXAMPLES OF SOLIDS

 A liquid is the state of matter that has a definite volume but
takes the same shape of its container.
LIQUIDS

 The particles move fast enough to overcome the attraction of
some particles.
 The particles slide past each other.
PROPERTIES OF LIQUIDS

 Soda
 Water
 Lava
 Juice
 Milk
EXAMPLES OF LIQUIDS

 All liquids have surface tension.
 Surface tension – a force that holds together particles at the
surface of a liquid.
 ST makes some liquids to form spherical drops (like water).
 Liquids have different ST’s than each other.
SURFACE TENSION

EXAMPLES OF SURFACE TENSION
 Ex:
Water Rubbing alcohol

VISCOSITY
 All liquids have viscosity.
 Viscosity – a liquid’s resistance to flow
 The viscosity of a liquid depends on the attraction between
it’s particles.

 Ex: Water has a low viscosity, and that is why we have rivers.
Honey has a high viscosity be cause it takes forever to flow.
EXAMPLE OF VISCOSITY
Water Honey

 A gas is the state of matter that has no definite shape or
volume.
GASES

 Particles in a gas move quickly enough they can break away
from their attraction for other particles.
 The amount of empty space between gas particles can
change.
PROPERTIES OF GASES

 Helium
 Oxygen
 Nitrogen
 Carbon dioxide
 Argon
EXAMPLES OF GASES