Key terms & definitions

A selection formed by choosing items from specified groups or categories.

Connecting and arranging selected elements so that they create meaning together.

The result of applying two or more transformations in succession.

The coordinated use of different military forces and weapons, such as infantry, artillery, tanks and aircraft.

The coordinated use of different types of troops, such as archers, infantry and cavalry, so that their strengths support one another.

An authority bringing together a group of local councils to carry out agreed functions across a wider area.

Two or more outcomes considered together, such as obtaining a head and then rolling a six.

Generating electricity and using the heat produced at the same time, for example to heat nearby homes or workplaces.

An outcome formed by considering the results of two or more stages together.

A single transformation equivalent to applying two or more transformations in a specified order.

Bringing ingredients together so that they have the intended distribution of flavour, texture and appearance.

Burning a fuel or vegetation, releasing its stored carbon mainly as carbon dioxide.

Burning a substance, such as wood or a fossil fuel, which releases carbon dioxide into the atmosphere.

A reaction in which a substance burns in oxygen, usually releasing energy.

A reaction in which a substance burns in oxygen, releasing energy.

An organisation established in January 1949 to coordinate economic cooperation among communist countries and provide an alternative to Marshall Aid.

A dramatic genre usually moving towards union, reconciliation and restored order rather than a fatal ending; it need not be funny throughout.

Drama that uses humour, exaggeration and often an improbable situation to entertain and expose human or social weaknesses.

A novel or play that uses wit and social situations to expose the manners, pretensions and values of a particular society.

A small, icy body that orbits the Sun and can develop a cloud of gas and dust, and a tail, as it approaches the Sun.

A publication containing illustrated stories, often using humour and speech or thought bubbles.

A humorous episode that briefly reduces tension within a serious narrative.

A dramatic ending in which conflicts are resolved and relationships restored, often through marriage and communal celebration.

An organisation established in September 1947 through which Stalin coordinated communist parties and strengthened Soviet political control.

A drama concerned with a young person's movement towards adulthood, including changes in responsibility, relationships and identity.

A story concerned with the experiences through which a young person moves towards adulthood, often involving identity, relationships and responsibility.

The Roman assembly organised into centuries, in which wealthier groups had greater voting influence.

The curiate assembly, from which Volero Publilius proposed transferring the election of plebeian tribunes.

The tribal assembly, to which the election of plebeian tribunes was transferred in 471 BC.

An economy in which the state directs production, resources and labour rather than leaving these mainly to private businesses.