Cohesion Water molecules will stick to other water molecules, the reason why water forms droplets

Cohesion Question How is cohesion different from adhesion?

Water molecules stick to certain surfaces like glass Adhesion Water molecules stick to certain surfaces like glass

Adhesion Question Give an example of the adhesion of water in your everyday life.

Water Molecule H2O is the chemical formula, this means that each molecule is made up of 2 Hydrogen atoms and 1 oxygen atom

Question Question What is a molecule?

Polarity The oxygen end of a water molecule is negatively charged and the hydrogen ends are positively charged; this causes water molecules to stick together (positive to negative)

Question Question How is the polarity of water related to the cohesion of water?

Surface Tension The molecules at the surface of the water "stick together" to form a type of 'skin' on the water, strong enough to support very light objects

Question Question How is surface tension of water related to the cohesion of water?

Capillary Action The ability of a narrow tube to draw a liquid upwards against the force of gravity

Question Question Describe one practical use of capillary action in your everyday life.

Specific Heat The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius. Water has a high specific heat. It takes a lot of energy to raise the temperature of water.