18 November 2015 Last updated at 08:08 GMT
Sadly, more than 120 people lost their lives and the French police and army were called in to help keep people safe.
The country held three days of national mourning and people around the world showed their support for France.
Newsround's Jenny has been speaking to kids there about how they're dealing with what happened.
A number of  attacks took place in Paris, the capital city of France on Friday.