The higher the altitude, the lower the air pressure, the lower the boiling point of water, and thus, the longer time to hard-boil an egg. Surface tension is responsible for capillary action, which allows water (and its dissolved substances) to move through the roots of plants and through the tiny blood vessels in our bodies.Īir pressure affects the boiling point of water, which is why it takes longer to boil an egg at Denver, Colorado than at the beach. In other words, water is sticky and elastic, and tends to clump together in drops rather than spread out in a thin film, like rubbing alcohol. The high heat index of water also helps regulate the rate at which air changes temperature, which is why the temperature change between seasons is gradual rather than sudden, especially near the oceans. This is why water is valuable to industries and in your car's radiator as a coolant.
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Water has a high heat index-it absorbs a lot of heat before it begins to get hot. Water becomes a conductor once it starts dissolving substances around it. Pure water, which you won't ever find in the natural environment, does not conduct electricity. Both cohesion and adhesion make water molecules very sticky! Water molecules are also adhesive in that they stick to other surfaces. Water is the most cohesive among the non-metallic liquids. The water molecule is highly cohesive- it is very sticky, meaning water molecules stick to each other. Pure water has a neutral pH of 7, which is neither acidic (less than 7) nor basic (greater than 7). Properties of water include its chemical formula H2O, density, melting, boiling point & how one molecule of water has two hydrogen atoms covalently bonded to a one oxygen atom. This means that wherever water goes, either through the ground or through our bodies, it takes along valuable chemicals, minerals, and nutrients.
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Water is called the " universal solvent" because it dissolves more substances than any other liquid.