This updated edition addresses the examined units of the CCEA AS level Life and Health Sciences specification (including the recently-proposed revisions). It covers both the Single and Double Award courses, through the study of the following units: * AS 2: Human Body Systems * AS 3: Aspects of Physical Chemistry in Industrial Processes * AS 5: Material Science The full-colour, illustrated chapters clearly explain the theory for the course, and are supported by worked examples, tips, examination-style questions and answers. The authors are all experienced science teachers and examiners and the book has been through a meticulous quality assurance process prior to publication. Contents: Unit AS 2: Human Body Systems 1 Cardiovascular System 2 Respiratory System 3 Respiration 4 Homeostatic Mechanisms and How These Are Monitored 5 Nutrition and Physical Exercise in Maintaining Good Health Unit AS 3: Aspects of Physical Chemistry in Industrial Processes 6 Chemical Calculations 7 Volumetric Analysis 8 Energetics 9 Kinetics 10 Equilibrium 11 Industrial Processes, Infrastructure and Environmental Consequences Unit AS 5: Material Science 12 Material Properties 13 Categorising Materials and Microscopic Structure 14 Alloys, Metal Working and Biomaterials 15 Smart Materials, Nanomaterials and Industrial Considerations 16 Semiconductors Answers

Improve your grade by focusing on the lessons learnt from previous exams. This write-in workbook targets the tricky topics in GCSE Biology with insights from the examiners' reports, model answers and practice questions to secure understanding and improve exam performance. - Target revision focusing on the topics and skills students have struggled with in previous exams. - Improve awareness of what the examiners are looking for and what's required to achieve each grade with model answers, commentary and full mark schemes. - Get exam ready with exam-style questions and tips on how to improve answers and boost grades. - Refresh and reinforce understanding of key concepts with short, clear summaries that help to eliminate common misconceptions. - Raise marks in the extended response, practical-based and maths questions with scaffolding that guides you through each area.

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