Student Unit Guides are perfect for revision. Each guide is written by an examiner & explains the unit requirements. This guide offers advice on preparing for the OCR (B) (Salters) Units F333 Chemistry in Practice & F336 Individual Investigation assessments. The Practical Chemistry section deals with experimental results & practical techniques. It explains how to obtain & record results & how to process them. The Practical Units section describes the skills required for AS Unit F333 & offers guidance for A2 Unit F336 on choosing & planning your investigation & the skills required. The Appendix contains some useful theory & the Answers section provides answers to the questions that are set throughout the guide.