Welsh Language Edition. Comprehensively revised and updated, this 2nd Edition of the Student Book is endorsed by WJEC offering high quality support you can trust. // Straightforward and concise coverage of the specification, so students can be confident they are covering what?s needed for exam success. // New ?Test Yourself? section at the end of each chapter to reinforce knowledge with answers provided in the book. // New section on ?Answering exam questions? at the end of each unit gives guidance on command words and how to approach each question. // New ?Exam Practice questions? at the end of each unit are taken from actual WJEC past papers with answers provided in the book. // Enhanced support for practical skills enable you to embed your understanding of practical work. // Increased maths support throughout with maths skills and techniques regularly tested throughout. // Clear explanations and diagrams throughout. // Includes the Periodic Table.