| A | B |
|---|
| physical change | change that occurs when some properties of a material change, but the substances in the material stay the same |
| distillation | process that separates the substances in a solution based on their boiling points |
| filtration | process that separates materials based on the size of their particles |
| conductivity | a material's ability to allow heat or electric charges to flow |
| viscosity | resistance to flowing |
| physical property | any characteristic of a material that can be observed or measured without changing the composition of the substances in the material |
| malleability | the ability of a solid to be hammered without shattering |
| melting point | the temperature at which a substance changes from solid to liquid |
| boiling point | the temperature at which a substance boils |
| precipitate | a solid that forms & separates from a liquid mixture |
| chemical property | any property that produces a change in the composition of matter |
| flammability | a material's ability to burn in the presence of oxygen |
| reactivity | the property that describes the property that describes how readily a substance combines chemically with other substances |
| chemical change | change that occurs when a substance reacts & forms one or more new substances |
| compound | a substance that is made from two or more simpler substances & can be broken down into those simpler substances |
| suspension | a hetergeneous mixture that separates into layers over time |
| solution | a mixture that forms when substances dissolve & form a homogeneous mixture |
| heterogeneous mixture | type of mixture in which the parts of the mixture are noticeably different from one another |
| pure substance | matter that always has exactly the same composition; an element or compound |
| element | substance that can't be broken down into simpler substances |
| atom | smallest particle of an element |
| homogeneous mixture | type of mixture in which substances are so evenly distributed that it is difficult to distinguish one substance in the mixture from another |
| solution | mixture that forms when substances dissolve & from a homogeneous mixture |
| suspension | heterogeneous mixture that separates into layers over time |
| colloid | mixture that contains some particles that are intermediate in size between the small particles in a solution & the larger particles in a suspension |
| compound | substance made from two or more simpler substances & can be broken down into those simpler substances |
