Simplify the following text for a Grade 8 native English-speaking person.
Original: In the United States and parts of Canada , cider containing alcohol is called hard cider or alcoholic cider , while cider or apple cider means less-sweet , usually unfiltered , apple juice .
Simplified: Although cider can be made from any variety of apple , certain cultivars are known as cider apples . Cider is popular in the United Kingdom , especially in South West England .