| A | B |
|---|
| hydrophilic | a type of molecule that interacts with water by dissolving in water and/or forming H-bonds with water |
| pH scale | a measurement scale for the hydrogen ion concentration of a solution |
| buffer | a chemical or combination of chemicals that can both take up and release hydrogen ions |
| carbonic acid | buffer within the human body |
| acid | a molecule that releases hydrogen ions into a solution to lower its pH numerically |
| base | a molecule that can take up hydrogen ions in a solution in order to raise its pH numerically |
| neutral pH | a molecule in which the hydrogen ion concentation is equal to its hydroxyl ion concentration |
| Property of water that helps facilitate chemical reaction | Water is the universal solvent |
| Property of water that allows it to serve as a transport medium | Water is adhesive/cohesive |
| Property of water that helps keep body temperatures constant | Water resists temperature changes |
| Property of water that allows aquatic animals to survive winters | Frozen water is less dense than liquid water |
| Property of water that helps animals in hot climates maintain internal temperatures | Water has a high heat of vaporization |
