Phases of Matter
Ch 2 Science
Terms in this set (17)
is an important physical property of matter
4 phases of matter - sold, liquid gas and plasma
solids have a definite shape and a definite volume because the tiny particles are packed close together and cannot move far out of their places
particles in a liquid are free to move because they are not as close together as in a solid. A liquid has NO definite shape. It takes the shape of its container. They DO have a definite volume.
phase of matter - gas does NOT have a definite shape and it does NOT have a definite volume. A gas fills all of the space in a containers.
Like liquids, gases have no definite shape. The particles are not arranged in a set pattern.
solids made up of crystals are called crystalline solids. solids made up of crystals are called crystalline solids. Ex. Table salt, Particles are arranged in a regular, repeating pattern called a crystal.
solids that lose their shape under certain conditions are amorphous. Ex. Sealing wax, silicone rubber
It's also a slow-moving liquid Ex. Candle wax, window glass and tar
the resistance of a liquid to its flow ex. Honey has a high viscosity compared to water, Oil also has a high viscosity
the temperature at which a solid changes to a liquid is called the melting point
change of a solid to a liquid
the temperature at which liquid boils
the change of a liquid to a gas
particles of a liquid travel across the surface then into the air
vaporization that takes place on top of a liquid
substance is a gas loses heat it changes to a liquid
the temperature at which a substance changes from a liquid to a sold (The freezing point of a substance is equal to its melting point)
when a solid sublimes its surface particles escape to the gas form. They do NOT pass through the liquid form