| A | B |
|---|
| physical change | change in which the composition of the substance remains the same. |
| malleability | ability of a substance to be hammered and does not shatter |
| conductivity | ability of a substance to allow heat to go through it |
| melting point | temperature at which a substance changes from a solid to a liquid |
| boiling point | temperature at which a substance changes from a liquid to a gas |
| hardness | ability of a substance to scratch |
| suspension | mixture that separates into layers |
| viscosity | ability of a substance to flow |
| homogeneous | mixture that has particles so evenly distributed that it is difficult to see one substance as separate from the other |
| heterogeneous | a mixture that has particles that are different from one another |
| atom | the smallesst particle of an element |
| physical property | characteristic which can be observed or measured |
| chemical property | a property which produces a change in the composition of matter |
| compound | substance made from two or more simpler substances |
| pure substance | a substance which can not be broken down into simpler substances |
| solution | mixture that forms when substances dissolve and form a homogeneous mixture |
| precipitate | solid that forms and separates from the liquid mixture |
| colloid | a mixture with neither small particles like a solution or large like a suspension |
| reactivity | how readily a substance combines chemically with other substances |
| pure substance | matter that always has the same composition |
