Ion formation: The colour of lightning strike

Plasma is the fourth state of matter. It sounds exotic, but it is around us, especially during a thunderstorm.

Purifying water

Read about the Singapore water story, as told through the lens of a chemist, and learn the separation techniques and chemicals involved in…

Definition and properties of acids

Learn about the defining property of acids: acids dissociate in water to produce hydrogen ions, either partially or fully, depending on…