Improve your skills and knowledge with the National 4 Chemistry Study Guide from BrightRED Publishing. From the authors of the bestselling National 5 Chemistry Study Guide, this guide will give you all the tools you need to succeed at National 4. In this Study Guide, you will find: coverage of all four units of the course, and extra sections on Skills and Assessment; Don’t Forget features with helpful hints on key points; Things to Do and Think About sections which provide you with plenty of opportunities to put your knowledge into practice.