Properties &Changes of matter Flashcards
Physical Property
A property that can be easily observed without changing the identity of the substance.
Viscosity
Thickness of a liquid; the speed at witch it flows.
Conductivity
a materials ability to allow heat or electricity to flow trough it.
Does metal have high or low conductivity?
Metal has a high Conductivity
Does wood have high or low conductivity?
Low Conductivity
Malleability
A substances ability to be hammered into a thin sheet
Hardness
How hard a substance is
magnetism
an objects ability to attract or repel another object
Soulubility
The ability of a substance to dissolve
What is this an example of:
Sugar dissolved in water
Solubility
Melting Point
The tempature at witch a solid becomes a liquid
Boiling point
Temperature at witch a liquid becomes a gas
Freezing point
Temperature at witch a liquid becomes a solid.
Physical change
A change in the appearance, without changing the identity of a substance.
A physical change can always go. Back to the________ ______________
Original Substance
It is a physical change if it changes ……
shape, size, it dissolves, or the substance changes phases.
Chemical Properties
Any ability to produce a change in the identity of matter.
Flammability
A materialsability to burn
Reactivity
How readily a substance combines chemically with other substances
Corrosiveness
The process of eating away, such as metal by acid
What are the three main chemical properties
1- flammability
2- Reactiveness
3- Corrosiveness
Chemical changes
Occur when a substance reacts and forms one or more new substances
you know their is a chemical change when their is change in…
Color, odor, production of gas (bubbles), formation of a solid, and if it absorbs or releases any energy ( heat, cold, or light) Ex. Glow stick
What are the 7 main types of physical properties?
1- viscosity
2- conductivity
3- malleability
4- hardness
5- magnetism
6-solubility
7- density
