house of representatives
Australia is divided up into areas called electorates. For each electorate there is one seat in the House of Representatives. Each electorate has about the same number of people living in it. At an election, the people who live in each electorate vote for a person to go to Parliament to speak for them. That elected person becomes the Member of the House of Representatives for that seat.
Most people who stand for election are members of different groups or parties. The party that has most members elected to the House of Representatives becomes the Government, and its leader becomes the Prime Minister of Australia.
The party that wins the next highest number of seats in the House of Representatives is called the Opposition and its leader is called the Leader of the Opposition. In the house of parliament there is a big room called the chamber that’s where all the members discuss things.