Campbell Biology Chapter 3 | Questions and Answers with complete solution

polar molecule - molecule with an unequal distribution of charge, resulting in the molecule having a positive end and a negative end 4 emergent properties of water - 1. Cohesion 2. Temperature Moderation 3. Expands upon freezing 4. Versatile as solvent cohesion - tendency of molecules of the same kind to stick to one another adhesion - attraction between molecules of different substances; in plants, attraction between unlike molecules surface tension - a measure of how difficult it is to stretch or break the surface of a liquid moderation of temperature by water - -absorbs heat from air that is warmer and releasing the stored heat to the air that is cooler. -high specific heat/ high heat of vaporization kinetic energy - energy of motion heat - a form of energy that is transferred by a difference in temperature temperature - a measure of the intensity of heat in degrees, reflecting the average kinetic energy of the molecules, regardless of volume. calorie - unit of heat defined as the quantity of heat required to raise the temperature of 1 gram of water by 1 degree centigrade at atmospheric pressure