| A | B |
|---|
| Chemistry | the science that investigates and explains the structure and properties of matter. |
| Matter | anything that takes up space and has mass. |
| Mass | the measure of the amount of matter an object contains. |
| Property | the characteristics of matter; how it behaves. |
| scientific model | a thinking device built on experimentation that helps us understand and explain macroscopic observation. |
| Qualitative | an observation made without measurement. |
| Quantitative | an observation made with measurement. |
| Substance | matter with the same fixed composition and properties. |
| Mixture | a combination of 2 or more substances in which the basic identify of each substance is not changed. |
| physical change | a change in matter where its identity does not change. |
| physical property | a characteristic of matter that is exhibited without a change in identity. |
| Solution | a mixture that is the same throughout, or homogeneous. |
| Alloy | a solid solution containing different metals, and sometimes non-metallic substance. |
| Solute | the substance that dissolves the solute when making a solution. |
| aqueous solution | a solution in which the solvent is water. |
| Element | a substance that cannot be broken down into a simpler substance. |
| Compound | a chemical combination of 2 or more different elements joined together in a fixed proportion. |
| Formula | a combination of chemical symbols that show what elements make up a compound and the number of atoms of each elements. |
