Exam Board: AQA Level: GCSE Grade 9-1 Subject: Combined Science: Trilogy First Teaching: September 2016, First Exams: June 2018 Suitable for the 2020 autumn and 2021 summer exams Revision that Sticks! Collins AQA GCSE 9-1 Combined Science Trilogy Revision Guide uses a revision method that really works: repeated practice throughout. This revision guide contains clear and concise revision notes for every topic covered in the curriculum, plus five practice opportunities to ensure the best results. Includes:* quick tests to check understanding* end-of-topic practice questions* topic review questions later in the book* mixed practice questions at the end of the book* free Q&A flashcards to download online* an ebook version of the revision guide