| A | B |
|---|
| solution | A well- mixed mixture containing a solvent and at least one solute that has the same properties throughout |
| solvent | The part of a solution that is present in the largest amount and dissolves a solute. |
| solute | The part of a solution present in a lesser amount and is dissolved by the solvent. |
| colloid | A mixture containing small, undissolved particles that do not settle out. |
| suspension | A mixture in which particles can be seen and easily separated by settling or filtration. |
| dilute solution | A mixture that has only a little solute dissolved in it. |
| concentrated solution | A mixture that has a lot of sollute dissolved in it. |
| solubility | A measure of how much solute can dissolve in a given solvent at a given temperature. |
| saturated solution | A mixture that contains as much dissoved solute as is possible at a given temperature. |
| unsaturated solution | A mixture that contains less dissolved solute than is possible at a given temperature. |
| supersaturated solution | A mixture that has more dissolved solute than is predicted by its solubility at a given temperature. |
| digestion | The process that breaks down complex molecules of food into smaller molecules. |
| chemical digestion | The process that breaks large molecules in food into smaller molecules. |
| mechanical digestion | The physical process that tears, grinds, and mashes large pieces of food into smaller ones. |
| acid | A substance that tastes sour, reacts with metals and carbonates, and turns blue litmus paper red. |
| corrosive | The way in which acids react with some metals so as to eat away the metal. |
| indicator | A compound that changes color in the presence of an acid or a base. |
| base | A substance that tastes bitter, feels slippery, and turns red litmus blue. |
| pH scale | A range of values used to express the concentration of hydrogen ions in a solution. |
| hydrogen ion | H+; positive ion made of a hydrogen atom that has lost an electron |
| hydroxide ion | OH-; negative ion made of hydrogen and oxygen |
| neutralization | reaction between an acid and a base resulting in a solution that is not as acidic or basic as the starting solutions |
| salt | ionic compound formed from the neutralization of an acid with a base |
