Cohesive devices, sometimes called linking words, linkers, connectors, discourse markers or transitional words, are one of the most misunderstood and misused parts of IELTS Writing. Cohesive devices are words like ‘For example’, ‘In conclusion’, ‘however’ and ‘moreover’.

Cohesive devices are words or phrases used to connect ideas between different parts of text.

Cohesion is a property of a substance where the particles of it stick together. When we speak of a coherent thought, we mean a series of thoughts (often a line of argument) that make a clean journey from one point to another.

Salt water have less cohesion than distilled water. This is because most of the atoms are already bonded to each other so there are less atoms to be able to let cohesion occur.

1 Answer. Stefan V. Yes, adding salt to water does increase the surface tension of water, although not by any significant amount. It is a very common misconception that salt is a surfactant, i.e. a compound that either lowers or breaks surface tension.

Because of its charge, water molecules bind strongly to the ion. More strongly than they do to each other. So adding salt strengthens the network of intermolecular bonds in the water. So since surface tension is due to the intermolecular bonds, stronger intermolecular bonds will lead to higher surface tension.

Importantly, this bonding makes water molecules stick together in a property called cohesion. The cohesion of water molecules helps plants take up water at their roots. Cohesion also contributes to water’s high boiling point, which helps animals regulate body temperature.