OCR GCSE Chemistry B key terms

The release of gases from inside a planet, particularly through volcanic activity.

The amount of space occupied by a liquid or gas, commonly measured in cm³ in these experiments.

The distance between successive points on a light wave, commonly shown in nanometres (nm) for visible-light spectra.

An acid that ionises only partly in water.

An investigation in which relevant variables other than the independent variable are kept constant so that conditions can be compared validly.

The amount of desired product actually obtained from a reaction.

An equipment fault in which an instrument gives a non-zero reading when the quantity being measured is zero.