Water

The negative electrons in the bond are puller towards the oxygen and away from the hydrogen

Makes the oxygen atom slightly negative and the hydrogen atom slightly positive

It has an opposite charge each end of the molecule Water is polar

Weak hydrogen bonds are formed between molecules where the slightly negative oxygen in one molecule is attracted to the slightly positive hydrogen on a different water molecule

The hydrogen bonding means they show cohesion This allows water to be pulled up in a continuous column in the xylem of plants

Surface tension which can support small organisms such as pond skaters and form droplets in skin for sweating

Water is a metabolite in hydrolysis reactions, condensation reactions, photosynthesis and respirations

Allows for chemical reactions to occur in a solution The transport of substances (Because water is polar)

For water to turn from a liquid to as gas the hydrogen bonds must be broken which requires lots of energy This is useful in cooling body temperature with sweating or panting as a lot of heat energy can be removed through evaporation of water reducing dehydration

It takes a lot of energy to increase the temperature of water as most energy is used to break the hydrogen bonds rather than release heat to increase temperatures This is useful as it buffers the change in body temperature Makes water a good habitat for other organisms as the temperature doesn’t change as much

Water consists of one oxygen atom and two hydrogen atoms. 2 Water is a polar molecule. The oxygen atoms in water are slightly negatively charged, and the hydrogen atoms are slightly positively charged. 3 The polarity of water molecules means that a hydrogen atom on one water molecule is attracted to the oxygen atom on another water molecule. 4 This attraction is called hydrogen bonding.

the lattice structure of ice created by hydrogen bonding makes ice less dense than the freely flowing molecules of liquid water