These questions on Circulation will save you time and will help students to know the content of their textbook. There are not exam style questions but are designed to assist students to focus and pay attention to the details while they read the topics from their Edexcel book. They can be used during their reading, after they have read the topic from the book or for revision as well. I used these questions with my students frequently and I find that they begin to pay attention to the tiny details. These can be used with the other exam boards as well.