The CD-ROM comprises: Practice tests for written papers Biology 2, Chemistry 2 and Physics 2, which are tiered and come with answers and mark schemes. Activities and homeworks to support each chapter of the Student's Book. These range from extension material for higher-tier students to support activities for foundation-tier students and from homework activities to those activities suitable for class work. Practical work designed to develop investigative skills for the new Investigative Skills Assignments. All activities have been safety checked and technician's notes are provided where appropriate. All assessments and worksheets are fully editable, printable and photocopiable. Full answers and teacher support are given for all questions and activities. These worksheets and exam practice assessments have been written to complement the associated Student's Book and are referenced in the associated Teacher's Guide.