science 6/1

physical property

any characteristic of a material that can be observed or measured without changing the composition of the substances In the materials

viscosity

the tendency of a liquid to keep from flowing (resistance to flowing)

conductivity

a materials ability to allow heat to transfer

malleability

the ability of a solid to be hammered without shattering

melting point

temp that changes substance from solid to liquid is 0 degrees Celsius (solid to liquid)

boiling point

the temp which a substance boils is 100 degrees Celsius (from liquid to gas)

filtration

process that separates materials based on the size of there particles

distillation

process that separates stuff based on there boiling points

physical change

occurs when sine if the properties of a material change but the substances in the material stay the the same (melted butter)

chemical property

any ability produce a change in the composition of matter

reactivity

the property that describes how readily a substance combines chemically with other substances is reactivity

chemical change

occurs when a substance reacts and forms one or more new substances

clues - color change, production of gas (fizz), precipitate formation

precipitate

any solid that forms and separates from a liquid mixture

flammability

a materials ability to burn in the presence of oxygen