Practical booklet which pupils complete - covers biuret test in a different and fun context, where pupils have to find out which sample is the 'real' blood sample (contains the globular protein - hemoglobin).
Suitable for all years and can be adapted very easily via end page (questions are pre-set for AS/A level Biology students but can be changed easily to differentiate for classes you may teach).
Requisition practical equipment (test tubes, blood looking samples e.g. tomato paste, ketchup, paint, order real animal blood etc).
Has embedded peer-assessment, where pupils can comment on how each pupil wrote their report, focusing on particular sections for areas of improvement e.g. for KS3, may not have included all materials and methods.