Key terms & definitions

A line or smooth curve that represents the overall trend of plotted data rather than joining every individual measurement.

An estimated straight line that represents the overall trend of points on a scatter graph.

A straight line that summarises the overall linear pattern of points on a scatter diagram.

A line drawn through the overall pattern of points on a scatter graph, with roughly equal numbers of points above and below it.

An agreed boundary separating areas claimed by different powers.

The connected development of a viewpoint through a piece of writing, with each main idea helping to establish the conclusion.

A line that divides a shape into two parts which are exact mirror images of each other.

The connected direction of ideas through a text, so that each section develops the overall message.

A manufacturing arrangement in which machines are set up in a straight line and work passes between machinists, each carrying out a set task.

The part of a straight line between two endpoints, such as $AB$.

The routes connecting an army with its supplies, reinforcements and bases.

A pattern of separate bright lines at particular wavelengths in light emitted by a substance.

A sacred symbol of Shiva used as a focus for worship.

The view that language determines thought and restricts what a person can think about.

The view that the language people use influences their thinking but does not completely determine what they can think.

Fitting suitable paper, such as baking parchment, against the inside of a tin to separate the food from the tin and help it release.

An arrangement of connected rods or arms that transmits force and movement.

A system developed by Carl Linnaeus that groups organisms into kingdom, phylum, class, order, family, genus and species.

The horizontal beam or stone spanning the top of a doorway.

A digestive enzyme that breaks down lipids into fatty acids and glycerol.

An enzyme that breaks down lipids into glycerol and fatty acids.

A molecule formed from glycerol and fatty acids; fats and oils are lipids.

A biological molecule belonging to a group that includes fats and oils. Lipids act as energy stores and form part of cell membranes.

A member of a group of compounds that includes fats and oils and does not dissolve in water.

A state of matter in which particles remain close together but are irregularly arranged and can move past one another.

A state of matter with a fixed volume but no fixed shape; its particles are close together and can move past one another.

A thin, dichloromethane-based joining liquid used to bond compatible thermoplastics such as acrylic by solvent action.

A thin display in which electrically controlled liquid crystals regulate the passage of light to form images or characters.

The ability of a business to meet its short-term debts and expenses using money that is readily available.

The pressure caused by the weight of the liquid column above a point.