Cohesion and adhesion of water

Theory pages

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Learn the difference between adhesion and cohesion. See examples, including how these processes affect water molecules.

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According to the cohesion-tension theory, the main force that drives water up a plant is transpiration and cohesion and adhesion of water in the xylem.

With two simple yet fun experiments, this worksheet covers the interesting topic of cohesion and adhesion of water.

Learn all about the makeup and properties of water molecules! Defines polarity and shows atomic structure. Learn about cohesion and adhesion!

Capillary action happens because the adhesion force is more stronger then the cohesion force. Capillary action is an effect caused by the interactions of a liquid [e.g. water] with the walls of a tube, eg glass tube. Water climbs up, aginst gravity, in a glass tube because of the strong hydrogen-bonding interactions between H_2O, id est the hydrogen atom and the surface of the glass (glass contains SiO_2; oxygen from SiO_2 is typically bonded to hydrogen from water). On the video below is…

Water is indeed essential for all life on, in, and above the Earth. This is important to you because you are made up mostly of water. Find out what water does for the human body.

Try these water science experiments! Your kids will love learning about the water's properties, the water cycle, waves, currents & pollution.