Chore = A routine task/job, especially a household one
When you live with a homestay family, you should think of yourself as a member of that family. That means you will take part in family life, which may include helping out with family chores.
Chores are small jobs that need to be done regularly around the family home such as cleaning up the kitchen, loading and unloading the dishwasher, cleaning up one’s own bedroom, and taking out the garbage or recycling.
Helping with cooking is a great way to spend time with your host family and participate in one of the more enjoyable chores.