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Water Property Definitions. COHESION and ADHESION are the "stickiness" that water molecules have for each other (cohesion) and for other substances (adhesion). . is for the children to clap their hands – this is cohesion. They can also take th. stick to things that are n.
25 kwi 2001 · Many of water's basic physical properties can now be explained, at least semiquantitatively, in molecular and structural terms, although in spite of intense study it remains incompletely...
This chapter begins with descriptions of the physi-cal and chemical properties of water, to which all aspects of cell structure and function are adapted. The attractive forces between water molecules and the slight tendency of water to ionize are of crucial impor-tance to the structure and function of biomolecules.
Educator Notes. Learning Objectives. • Identify six properties of water. • Identify the structure of a water molecule. • Explain how the structure of a water molecule relates to the properties of water. Credit: NASA.
Water is a simple molecule consisting of one oxygen atom bonded to two different hydrogen atoms. Because of the higher electronegativity of the oxygen atom, the bonds are polar covalent ( polar bonds ).
Remind students that water molecules are very polar. The strong attractions between water molecules affect water’s surface tension, boiling point, and rate of evaporation. Tell students that they will do an experiment to compare the evaporation rates of water and another liquid that isn’t as polar. Ask students:
This section describes the properties of water in the liquid and solid states and explains how hydrogen bonding affects the surface tension and vapor pressure of water. Water in the Liquid State (pages 445–447) 1.
