These are a set of short, low stakes tests for the Edexcel 9-1 Combined Science GCSE course for Biology. These test cover units CB1, CB6,CB7, CB8 and CB9. The test take around 10 minutes each and can be used for revision, a quick assessment, including peer or self assessment, or for homework. The markschemes are at the end of each paper, but can be cut out. The tests are mainly aimed at higher students, but foundation students should also be able to complete these questions.