Imagine you have a big family and you all live in a special house called the Vatican. The Vatican is like the HQ for the Catholic Church. The leader of the Catholic Church is called the Pope, and he is like the head of the family.
Whenever the Pope gets older or can't be the leader anymore, the family has to choose a new Pope. They do this by having a special meeting called a papal conclave. Think of it like a big family meeting where everyone gets together to decide who will be the new leader.
During the papal conclave in 2005, all the cardinals from around the world came to the Vatican. Cardinals are like the Pope's helpers. There were 115 cardinals in 2005. They stay in a special place called the Sistine Chapel, which is like a big colorful room with beautiful paintings on the ceiling. They can't leave until they decide on a new Pope.
Every day, the cardinals would go into the Sistine Chapel and have secret meetings. They would talk to each other, discuss who they think should be the new Pope, and vote on it. Remember, it's like a big family meeting, so they have to agree on who will be the best leader for the family.
To make sure no secrets get out, they keep the doors locked and cover the windows with special curtains. They don't want anyone to see or hear what they are doing until they are ready to announce the new Pope.
During the conclave, they would cast their votes using special papers called ballots. Each cardinal would write down the name of the person they think should be the new Pope and fold the paper. Then, one by one, they would go up to a special box and put their ballot in.
If nobody gets enough votes to be elected as the new Pope, they burn all the ballots. They add a special chemical to make the smoke turn black, which means they will try again the next day. But if someone gets enough votes, they burn the ballots and add chemicals to make the smoke white. When everyone sees the white smoke, they know a new Pope has been chosen.
In 2005, after a few days of voting, they finally chose a new Pope named Pope Benedict XVI. He became the leader of the Catholic Church and the family. They announced it to everyone by showing the white smoke and ringing the bells.
So, the papal conclave in 2005 was like a big family meeting where the cardinals got together in the Vatican, voted on a new Pope, and eventually chose Pope Benedict XVI as their new leader.