Chalk is a fine-textured form of limestone. It is composed of several tiny fragments of the calcite shells or skeletons of ...

CNG (Compressed Natural Gas) is a natural gas stored under high pressure. It is lighter than air and ideal for vehicles due ...

Vinegar is an acidic liquid that is made through fermentation of ethanol by acetic acid bacteria. It is used in cooking for ...

A lead-acid battery is a type of rechargeable battery, invented in 1859. It uses lead plates (electrodes) submerged in ...

Science is often viewed as an esoteric knowledge associated with powerful and obscure practices. This is especially true of chemistry. Chemical names and formulas, though of obscure meaning to most ...