A1.1 & D2.3.1 Water

They are strongly cohesive and stick to one another, this is because of its large number of hydrogen bonds (surface tension)

Stick to other polar or charged molecules, large number of hydrogen bonds gives it strength

Water sticks to the sides of xylem vessels, moving the water upwards when the vessel is empty

The polar attraction of large quantities of water can interrupt intra-molecular forces, the polar end will take one solvent and the non polar will take another

Fluid exerts an upward force on the object, if the density of the object is larger than the density of the fluid it will sink

solutes in the fluid

Water has a high heat conductivity, then fats and oils, then air therefore aquatic animals lose heat in water

The heat required to raise the temperature of 1g of material by 1 degree C

It takes a lot of energy for water yo change temp compared to air. Water can therefore be used to cool off.

when solutes dissolve they develop a hydration shell