Good question Gabby! The Senate and the House of Representatives, with the Queen (representated by the Governor-General), comprise the Australian Parliament. They work together to make laws for Australia, scrutinise the government to keep it accountable and represent the people of Australia.
The House of Representatives is recognisable by its green seats and carpet. The 151 members of the House of Representatives represent electorates (an area of approximately 100 000 voters). The Australian Government is formed in the House by the party or coalition of parties with the support of the majority of members.
The Senate is recognisable by its red seats and carpet. The 76 senators represent their state or territory.