Thanks for your question Finn! The answer depends on what you mean by change.
The Australian Government can change following a federal election depending on which team wins the majority (76 or more seats) in the House of Representatives. The Australian people decide which team will form government by electing representatives to the House.
There are many ways that Australian society may change over time. Governments may choose to respond to these changes by making new laws. For example, when the internet arrived in Australia in 1989, the government needed to make new laws about how it should operate and be run.
If you’re interested in checking out how the government has responded to change in the past have a look at the Federal Parliament history timeline.