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PS. Ch. 15 I.D.
Physical Science
| Question | Answer |
|---|---|
| Element or compound that cannot be broken down into simpler components and maintain the properties of the original substance. | Substance |
| Substance with atoms that are all alike. | Element |
| Substance formed from two or more elements in which the exact combination and proportion of elements is always the same. | Compound |
| Mixture, such as mixed nuts or a dry soup mix, in which different materials are unevenly distributed and are easily identified. | Heterogeneous Mixture |
| Solid, liquid, or gas that contains two or more substances blended evenly throughout. | Homogeneous Mixture |
| Homogeneous mixture that remains constantly and uniformly mixed and has particles that are so small they cannot be seen with a microscope. | Solution |
| Heterogeneous mixture whose particles never settle. | Colloid |
| Scattering of a light beam as it passes through a colloid. | Tyndall Effect |
| Heterogeneous mixture containing a liquid in which visible particles settle. | Suspension |
| Any characteristic of a material, such as size or shape, that you can observe or attempt to observe without changing the identity of the material. | Physical Property |
| Any change in size, shape, or state of matter in which the identity of the substance remains the same. | Physical Change |
| Process that can separate two substances in a mixture by evaporating a liquid and recondensing its vapor. | Distillation |
| Any characteristic of a substance, such as flammability, that indicates whether it can undergo a certain chemical change. | Chemical Property |
| Change of one substance into a new substance. | Chemical Change |
| States that the mass of all substances present before a chemical change equals the mass of all the substances remaining after the change. | Law of Conservation of Mass |