Year 10

The universe and the Big Bang model

Sequence early-universe events and match observations with an expanding, cooling universe.

Subtopics

From a hot early universe to galaxies

Sequence expansion, cooling, nuclei, atoms, stars and galaxies at an introductory level.

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Worked examples Practice

Galaxy redshift and expansion patterns

Interpret shifted spectral lines and supplied distance–recession data.

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Background radiation and light-element evidence

Match the Big Bang model’s predictions to the microwave background and early element abundances.

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Worked examples Practice