Cohesion: Hydrogen bonds hold water molecules together.

Althou water can absorb or release a large amout of heat, but it only has a slight change in its own temperature.

KINETIC ENERGY: the energy of motion.

HEAT: the measure of the total amount of kinetic energy due to molecule motion.

TEMPERATURE: measure the INTENSITY of heat due to the average kinetic energy of molecules.

the CELSIUS SCALE: a seasure of temperature using Celsius degrees.

a CALORIE(cal): THE AMOUNT OF HEAT REQUIRED TO RAISE THE TEMPERATURE of 1g of water by 1 degree.

KILOCALORIES(kcal) The calories on food packages where 1 kcal = 1000 cal

the JOULE(J): the another unit of energy where 1J = 0.239 cal OR 1 cal = 4.184 J

helps stabilize temperatures in organisms and bodies of water

ice can floats in liquid water because of hydrogen bonds in ice are more ordered, making ice less dense.

water reaches its greatest density at 4 degrees

SOLUTION : a liquid that is homogeneous mixture of substances.

SOLVENT: the dissolving agent of a solution.

SOLUTE: the substance that is dissoved.

AQUEOUS SOLUTION: one in which water is solvent.

Water is a versatile solvent due to its polarity