PS 3.1 States of Matter
fluid
"substance that flows" a liquid is an example of fluid
A solid is a state of matter that has a(n)
a definite volume and a definite shape.
In which state of matter do the particles spread apart and fill all the space available to them?
a gas
viscosity
a liquid's resistance to flowing
In which state of matter are particles packed tightly together in fixed positions?
a solid
A fluid is
a substance that flows.
Particles in a solid
are closely locked in position and can only vibrate
Particles of a liquid
are free to move in a container but remain in close contact with one another.
In gases, atoms and molecules
are free to move independently, colliding frequently
Particles in a liquid
are more loosely connected and can collide with and move past one another
gas
can change volume very easily
When heated, amorphous solids
do not melt at a specific temperature but may become softer and softer or change into another substance
Liquids with low viscosity
flows quickly
Liquids with high viscosity
flows slowly
solid
has a definite shape and a definite volume
liquid
has a definite volume but no shape of its own
The distances between particles in a gas
is much larger than those in a solid or liquid
surface tension
is the result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together
When heated, crystalline solids
melts at a specific temperature
A liquid has the same volume
no matter the size or shape its container is
Examples of amorphous solids are
plastics, rubber and glass
Examples of crystalline (crystals) solids are
salt, sugar and snow
A liquid's viscosity depends upon
size and shape of its particles and the attraction between them
crystalline solid
solids that are made up of crystals. salt, sugar, and snow are examples of crystalline solids
the surface of water can act like a sort of skin due to a property of liquids called.
surface tension.
amorphous solid
the particles are not arranged in a regular pattern
The state of matter in which particles are arranged in either a crystalline or an amorphous form are
types of solids
The resistance of a liquid to flowing is its
viscosity.
