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water molecules are able to stick to each other and the cohesiveness of water gives it a very high surface tension

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ice has a lower density than liquid water

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ice has a lower density than liquid water

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Water has a simple molecular structure. It is composed of one oxygen atom and two hydrogen atoms. Each hydrogen atom is covalently bonded to the oxygen via a shared pair of electrons. Oxygen also has two unshared pairs of electrons. Thus there are 4 pairs of electrons surrounding the oxygen atom, two pairs involved in covalent bonds with hydrogen, and two unshared pairs on the opposite side of the oxygen atom. Oxygen is an "electronegative" or electron "loving" atom compared with hydrogen.

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^ because of the structure of water, when it freezes it expands; becoming less dense. 

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^ because of the structure of water, when it freezes it expands; becoming less dense. 

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water molecules "stick" to other things due to its polarity. there is a curve in a glass of water because the glass is more polar than the other molecules of water

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water has a high specific heat meaning that it takes a lot of energy to change the temperature, compared to other things... thats why long island is warmer in winter than upstate; the water around the island acts as an insulation. 

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water has a high specific heat meaning that it takes a lot of energy to change the temperature, compared to other things... thats why long island is warmer in winter than upstate; the water around the island acts as an insulation. 

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it takes a lot of energy (heat) to vaporize water due to its hydrogen bonds. 

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it takes a lot of energy (heat) to vaporize water due to its hydrogen bonds. 

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When introduced to a very thin tube, the adhesion of water to the walls of the tube is stronger than the cohesion of water to itself, causing the water to travel up the tube, against gravity. This process is how plants with roots get their nutrients from the soil, as the nutrients dissolve in water which is then drawn up into the plant. Capillary action is also how the lacrimal ducts in the human eye produce tears.

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Is defined as the amount of heat it takes to convert water from it's boiling point into vapor w/o an increase in temp

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This is important for animals that live on ice, as their habitats would be greatly reduced or not exist at all if ice sank :(  - MC

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The dissolving power of water is very important for life on Earth.

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Water is able to dissolve other polar substances

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Specific heat is how fast water heats up or cools down, and since it's SH is very high, it has to absorb a lot of energy before changing phases.  This property creates a "buffer zone" to regulate water temps

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Vaporization is endothermic reaction. This means the system is absorbing energy. Water's heat of vaporization is about 41 kJ/mol.
-Sofia

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The specific heat of water is 1 gram degrees Celsius= 4.186 joule/gram degrees Celsius. The specific heat of water is higher than any other common substance, so water plays a very important role in temp regulation. 

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The specific heat of water is 1 gram degrees Celsius= 4.186 joule/gram degrees Celsius. The specific heat of water is higher than any other common substance, so water plays a very important role in temp regulation. 

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This property of water is incredibly important in regulating temperature - without it, our body temperature could rise or drop significantly, which is dangerous to life, and could potentially kill you. - Krista

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Due to the "like dissolves like" reasoning.  Non- polar molecules cannot dissolve polar molecules because they cannot interfere with the attraction of polar molecules. :)

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Heat of Vaporization is the process of turning water molecules from its liquid phase to its gas phase. The heat of vaporization is the specific heat absorbed when the liquid has gone through the process of vaporizing. The temperature stays constant throughout the process, as stated above. ^
- Amanda Fontana

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Specific heat is very crucial in the marine life. Specific heat stabilizes water temperature so that marine life has a favorable environment and limits them from freezing.
-Kim

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And what about the animals that live under the water??

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And what about the animals that live under the water??

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Specific heat determines waters ability to heat or cool down which is very important towards maintaining a stable temperature for an organism to thrive.

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water has a high heat of vaporization, the amount of energy needed to change one gram of a liquid substance to a gas at constant temperature.

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Fish and other marine animals benefit from the properties of water that allow ice to float because the layer of frozen water at the top of the body of water provides insulation, preventing the rest of the water from getting cold quickly. This means large bodies of water will not become as cold near the bottom, protecting marine life through the winter. -krista

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water has a very high level of polarity due to it being a non-polar molecule

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Specific heat is water's ability to heat or cool down. It serves as a regulator for water. This is measured in Joules (4.18).

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Specific heat is water's ability to heat or cool down. It serves as a regulator for water. This is measured in Joules (4.18).

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Heat of Vaporization is the amount of energy needed to convert a liquid to a gas. 

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Heat of Vaporization is the amount of energy needed to convert a liquid to a gas. 

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Cohesion- molecules being able to stick to like molecules.
Adhesion-  molecules being able to stick to different molecules.

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Ice has a lower density due to when ice freezes its molecules freeze which makes ice expand.

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Water is a polar molecule which allows it to dissolve with other polar molecules. "Like dissolves like"

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Cohesion holds hydrogen bonds together to create surface tension on water and Adhesion is when water is attracted to other substances (MikeyB)

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Heat of Vaporization is the amount of energy (kJ/mol) needed to separate the bonds far right to get into it's gas phase from liquid. Heat of Vaporization doesn't only apply thought vaporization but it also applies to condensation. Water has a high heat of Vaporization because it contains hydrogen bonds, which are stronger than dipole dipole and London dispersion bonds,