Properties of Matter ✅
Matter has observable properties
Changes of state are physical changes
Properties are used to identify substances
Physical properties
Density
Physical change
Melting
Freezing
Melting Point
Evaporation
Sublimation
Boiling
Substances have characteristic properties
Identifying substances
Separation
Density= Mass/Volume
D=M/
Chemical Change
Chemical properties
Substances that can be observed without change in the identity
Color, shape, size, texture, volume, mass
A change in any physical property of a substance (not the substance itself)
The change of one substance into another substance
Burning wood, an iron fence rusting, a silver spoon tarnishing
substances can form new substances
How well an object can burn
Turns into ashes
Process where a solid becomes a liquid
Lowest temp a substance begins to melt (0 C, 32 F)
Process where a liquid becomes a solid
Freezing point
Temp where a specific liquid becomes a solid
Process where a liquid becomes a gas
When a solid changes directly to gas
Boiling Point
another process where a liquid becomes a gas
When liquid reaches a certain temp
Properties of a substance to identify it
Density can be used to identify substances
Finding any matching densities will give you info on identy
Magnetic properties
If you have aluminum and steel cans you can use a magnet to separate the cans
To differentiate two or more objects