I'm doing A-level in Biology (Edexcel) and Chemistry (Edexcel) with the new specification. I've seen that there are three exams for each with the last exam looking to seem extremely difficult.
1.)What books/revision guides should I buy to get an A/A* in these subjects?
2.)Are the text books enough to achieve a high grade because I've heard that you have to go beyond the specification in order to achieve a high grade
3.) Do you think it's possible to achieve a high grade by learning/revising from textbook/ revision guides independently?
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