Properties of water/water..

2.2

Hydrophilic (Water-loving)

When a substance can dissolve in water.

Hydrophobic (water-fearing)

When a substance doesn’t dissolve in water.

Temperature

A measure of the motion (kinetic energy) of molecules. As the motion increases, energy is higher in which water absorbs a immense amount of energy before it rises. 

Evaporation

As the energy input continues, more hydrogen bonds are broken than formed, causing water molecules to release from the surface, such as body of water, the leaves of a plant, or the skin on an organism.

Solvent

A substance capable of dissolving another substance, because the water is polar with slight positive and negative charges. 

Cohesion

Uniting molecules together and forming together, such as water making a dome-like surface when filled completely

Surface tension

The ability of a substance to handle a burst/rupture when placed under stress/tension. 

Adhesion

The attraction between water molecules and other molecules.

Litmus paper

Paper that has been treated with a natural water-soluble dye so it can be used as a pH indicator, to test how much acid or base (basicity) exists in a solution.

pH scale

A measured overall concentration of hydrogen ions.

Acids

Substances that provide hydrogen ions (H⁺) and lower pH.

Bases

Provide hydroxide ions (OH^–) and raise pH.

Buffers

Absorb excess H⁺ or OH^–, keeping the pH of the body carefully maintained in the aforementioned narrow range.