In Israel, the first and the seventh days are celebrated as full holidays. The five days in between, called the Intermediate Days (Chol Ha-Moed) are celebrated as half holidays.
Outside of Israel, Passover is an eight-day holiday. The first two days and the last two days are celebrated as full holidays, and the four Intermediate Days are celebrated as half holidays.
Passover is a family holiday. It starts by cleaning the house of all Chametz (leaven) is out of the house. There is a ceremony to search for the Chametz, and it is called Bedikat Chametz (the searching out of the leaven) and Biur Chametz (the burning of leaven).
The highlight of Passover is the Seder (which means order). The Seder service is held at the dining table in most homes, and during the service the story of the Exodus from Egypt is told. The “order” of the Seder is told in a special book called the Haggadah (which means narrative).
During Passover, we recite special passages from the Torah and the Haftarah.
Here is a handy Cleaning for Pesach Checklist for you.