We have added a self-quiz feature to our website. The quizzes are on many different topics and are interactive. The quiz problems are in different formats: matching, multiple choice, fill in the blanks, drag and drop, etc. We believe the quizzes will help students prepare better for lectures, quizzes, and exams. The quizzes will cover very simple topics to the more difficult topics in chemistry. The quizzes are not meant to be a substitute for homework, but will complement homework problems. Most of the quizzes will cover the very basic concepts in chemistry. Please let us know what you think of the quizzes by commenting below, and we will continue to add more daily.