| A | B |
|---|
| Pure Substance | Any form of matter that cannot be separated and still maintain its original properties is a |
| Element | If all the atoms in a pure substance are exactly alike that substance is an ? |
| Compound | A pure substance in which atoms of two or more elements are chemically combined and take on new properties |
| Mixture | Something that is composed of two or more substances each of which keeps its own properties and can be physically separated |
| Homogeneous | When the substances are equally distributed throughout the mixture and are all in the same phase this is a ? mixture |
| Heterogeneous | In ? mixtures the substances are unequally distributed throughout the mixture and be in several different phases |
| Colloid | A heterogeneous mixture that contains two phases of matter but the particles are not large enough to settle out therefore staying mixed |
| Tyndall Effect | The scattering of a light beam as it passes through a colloid |
| Suspension | A heterogeneous mixture where solid particle settle out from the liquid |
| Physical Property | Any characteristic of a material, such as color or density, which you can observe without changing the identity of the material |
| Physical Change | A change in size, shape, or state of matter is called a ? because the identity of the substance doesn't change |
| Chemical Property | Any characteristic of a material, such as flammability, that can only be observed by changing the identity of the material |
| Chemical Change | A change of one substance in a material to a new substance that has different properties is a ? |
| Law Of Conservation Of Mass | According to the ? mass cannot be created or destroyed during normal chemical or physical changes it may only change form which sometimes makes it look like mass was lost or gained |
