States Of Matter Flashcards
Matter
Anything that occupies space and has mass
Mass
Is the amount of matter in an object
Properties Of Solids
Solids have a definite shape
A definite volume
Cannot be compressed
Cannot flow
Properties Of Liquids
Liquids have no definite shape
Have a definite volume
Cannot be compressed
Can flow
Gases
Gases have no definite shape
Have no definite volume
Can be compressed
Can flow
Heat Energy
In order for a substance to change state (from a solid to a liquid , or liquid to gas) it needs heat energy
Latent Heat
As a substance changes state , it uses latent heat . There is no change to temperature, but the state of the material changes
Melting Point
The melting point is when both the solid and liquid state exist together (changing from a solid to a liquid)
Boiling Point
The boiling point of a liquid is when evaporation begins to happen throughout the liquid (changing from a liquid to a gas
Condensation
Condensation is the changing of a gas to a liquid
Sublimation
Some substances do not change from a solid to a liquid when they melt, they change straight from a solid to a gas. E.g. solid carbon dioxide is known as dry ice and turns into a gas when heated
Diffusion
Diffusion is the movement of particles from an area of high concentration to an area of low concentration e.g. spray perfume in one corner of the room, and it spreads to the rest of the room
Fourth State Of Matter
Plasma is the fourth state of matter, like gas, but can conduct electricity.
It is very similar to a gas, in fact plasma is a gas that can carry an electric charge. Plasma particles spread out and move around randomly, but unlike gas, plasma has the ability to conduct electricity.
Physical Change
Matter changes shape or state but no new substance is formed. Easy to reverse E.G. melting,boiling.
