| A | B |
|---|
| substance | either an element or a compound |
| element | made of one type of atom |
| compound | madeof two or more atoms |
| mixture | combination of substances; substances retain their characteristics |
| heterogeneous mixture | mixture made of easily distinguished different parts |
| homogeneous mixture | mixture made of small particles uniformly spread out |
| solution | also known as a homogeneous mixture |
| colloid | heterogeneous mixture; small particles don't settle |
| supsension | heterogeneous mixture; particles settle upon standing |
| physical change | does not change the composition of a material |
| physical property | characteristics that can be observed without destroying the material |
| chemical change | results in the formation of new substances |
| chemical property | indicates what chemical changes and substance can undergo |
| tyndall effect | scattering of light |
| law of conservation of mass | states that mass/ matter cannot be created or destroyed- even in a chemical change |
| milk, fog and smog | examples of colloids |
| soda and gold jewelry | examples of solutions |
| italian salad dressing and muddy water | examples of suspensions |
| sodium chloride and water | examples of compounds |
| oxygen and nitrogen | examples of elements |
| tearing, breaking, crushing | examples of physical change |
| odor, light energy, sound energy | examples of signs of chemical change |
| color, size, state of matter | examples of physical properties |
| flammability and combustibility | examples of chemical properties |
| distillation | process in which salt can be removed from seawater |
| magnetism | process by which iron can be removed from a mixture |
| decanting | pouring off of a liquid |
