Big Bang Theory


Expansion of the Universe - Year 10 CLE

This online resource looks at cosmology.

The resource is a Connected Learning Experience (CLE) to help teachers teach the concepts concerned with the Big Bang theory to Year 10 students.


In this investigation, Edwin Hubble’s observations will be examined as evidence for the Big Bang theory. In 1929, Hubble discovered that the light from distant galaxies was red shifted and that the further a galaxy is from Earth, the faster it is moving away. This was evidence for the expansion of the universe following the Big Bang.

Big bang balloon

This online resource demonstrates the expansion of the Universe.

A balloon is marked with dots to represent different galaxies and as the balloon is inflated the distances between the galaxies and a 'home' galaxy are measured.

The relationship, that has become known as 'Hubble's Law', is further investigated by processing concrete numerical results.

Australian Curriculum v9 Codes: AC9S10U03 (Year 10)

Big Bang theory interactive timeline

This online resource looks at the history of the Universe.

The resource is an interactive timeline that covers the history of the Universe and the Earth from the Big Bang to the current day.

Links from this page also give access to activities that help reinforce the concepts involved.

Australian Curriculum v9 Codes: AC9S10U03 (Year 10)

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