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Unit 1 topic 3 Vocab

TermDefinition
Adhesion Water molecules stick to other materials
Cohesion The occurrence of water sticking to other water molecules via hydrogen bonds
Polar molecule A compound with one negatively charged side and one positively charged side
Hydrogen bond The side with the hydrogen atoms (positive charge) attracts the oxygen side (negative charge) of a different water molecule
Surface tension Water has a a thin "skin" on its surface due to the water molecules sticking togerther
Capillary action Cohesion and adhesion work togerther to allow water to travel against gravity and move up a plant stem
Specific heat capacity The amount of heat required to change the tamperature of a unit mass of a given substance by a amount (usuallly a degree)
Expansion upon freezing As water decreases in temperature, the molecules move away from each other
Universal solvent Wherever water goes, either through the ground or through living organisms, it takes along valuable chemicals, minerals, and nutrients
Created by: user-2051418
 

 



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