PROPERTIES OF MATTER AND CHANGES IN MATTER Flashcards
Are characteristics that can be observed without changing the composition of a substance.
Physical Properties
boiling point, melting point, density, color, odor, hardness, electrical and thermal conductivities, tenacity, elasticity, and plasticity.
Physical Properties
density, hardness, and color
Intensive Properties
volume, mass, and solubility
Extensive Properties
characteristics that a substance exhibits when it undergoes changes in composition.
Chemical properties
flammability, combustibility, and reaction with an acid.
Chemical Properties
do not alter the composition of a substance
Physical Change
- melting of ice
- grinding of meat
- chopping of vegetables
- breaking glass
- boiling of water
Physical Change
undergo when they form other substances
Chemical Change
- iron rusting
- burning wood
- baking a cake
- rotting banana
- metabolism
Chemical Change
occurs when a solid changes to a liquid. The melting point is the temperature at which a solid becomes a liquid.
Melting
occurs when a liquid changes to a solid. The freezing point is the temperature at which a liquid becomes a solid.
Freezing
occurs when a liquid changes to a gas at its boiling point. The boiling point is the temperature at which a liquid boils to become a gas.
Boiling
occurs when a substance changes from liquid to gas below its boiling point.
Evaporation
are liquids that evaporate easily at room temperature.
Volatile Liquids
