Alright kiddo, the law of Australia is a set of rules that everyone in Australia has to follow. It's like a big book of instructions that tells people what they can and can't do.
There are different types of laws, but the main ones are criminal and civil laws. Criminal laws deal with things like stealing, hurting someone, or breaking the law in other ways. Civil laws are more about disagreements between people, like when someone owes you money and won't pay it back.
The people who make the laws are called lawmakers, and they work in a special building called Parliament. They talk about what they think should be in the law, and then they vote to decide if it should be included.
Whenever someone breaks the law, there are people called police officers who are in charge of trying to catch them. If they do catch someone, that person will usually have to go to court to explain what happened. A judge will then decide if they really did break the law, and what punishment they should have.
The law is important because it helps keep people safe and makes sure that everyone is treated fairly. It's like having a big set of rules that everyone agrees to follow so we can all live together happily.