pH Scale:A measure of acidity or alkalinity based on the concentration of hydrogen ions. It's like a rating scale for how sour (acidic) or bitter (basic) something is.
Hydrogen Ion (H+): A positively charged atom of hydrogen; in other words, a hydrogen atom missing its electron. It's like someone who has lost their wallet and now has no money (electrons).
Hydroxide Ion (OH-): A negatively charged molecule made up of oxygen bonded to hydrogen. It’s like someone who found an extra dollar bill – they have more than what they started with!