| A | B |
| solute | part of a solution that is present in the smaller amount |
| solvent | part of a solution that is present in the larger amount |
| solution | a well-mixed mixture that contains a solvent and at least on solute |
| colloid | a mixture containing small, undissolved particles that do not settle out, but are large enough to scatter light |
| suspension | a mixture in which particles can be seen and easily separated by settling or filtration |
| saturated solution | a solution that has so much solute that no more dissolves |
| unsaturated solution | a solution in which more solute can be dissolved |
| solubility | a measure of how much solute can dissolve in a solvent at a given temperature |
| dilute solution | a solution that has only a little solute |
| concentrated solution | a solution that has a lot of solute |
| acid | a substance that tastes sour, reacts with metals and carbonates, and turns blue litmus red |
| base | a substance that tastes bitter, feels slippery, and turns red litmus blue |
| corrosive | the way in which acids react with some metals to as to "eat away" the metal |
| indicator | a compound that changes color in the presence of an acid or base |
| pH scale | series of numbers that indicates the concentration of hydrogen ions in solution |
| hydrogen ion | H+ |
| hydroxide ion | OH- |
| salt | ionic compound that can form from the reaction of an acid or base |
| neutralization | reaction between an acid and a base |
| digestion | the process that breaks down complex molecules of food into smaller molecules |