| A | B |
|---|
| element | one type of atom- carbon, copper |
| compound | two or more atoms- water, sugar |
| substance | an element or a compound |
| heterogeneous mixture | particles can be easily distinguished- granite, concrete, pizza, dry soup mixes |
| homogeneous mixture | two or more substances r uniformly spread out- salt water, rubbing alcohol~also a solution |
| colloid | a heterogeneous mixture that never settles-milk, gelation~scatters light |
| Tyndall effect | the scattering of light by particles |
| suspension | a heterogeneous mixture containing a liquid in which visible particles settle |
| coagulation | the process that destroys the colloid structure |
| physical property | a characteristic of a material tht you can observe w/o changing the substances that make up the material-color, shape, size, density, melting point, boiling point |
| physical change | a change in size, shape, or state of matter is called a physical change |
| chemical change | a change of one substance in a material to a diff. substance |
| chemical property | a characteristic of a substance that indicates whether it can undergo a certain chemical change |
| law of conservation of mass | matter is neither created nor destroyed during a chemical change |
