Properties :
Properties Identifying substances through descriptions
Physical Properties :
Physical Properties Physical properties describe a substance without changing it.
Shape
Size
Texture
Solid
Liquid
Gas
Smell
Taste
Chemical Properties :
Chemical Properties Observable only by forcing the substance to change.
Flammability
Oxidizing
Reacts with Acids
Reacts with Water
Change :
Change It can be common “cents”
Physical Changes :
Physical Changes Physical changes affect one or more physical properties
Shape
Size
Texture
Solid
Liquid
Gas
Do NOT change the substance, just observations about the substance
Often can be reversed
Chemical Changes :
Chemical Changes One or more substances changed into new substances
Signs:
Creation of heat or light
Bubbles (creation of gas)
Color Change
Creation of new solid
Physical properties change when new substances are formed.
Not usually reversible.