Downloadable worksheets for AQA GCSE Physics 4.3 Hazards and uses of radioactive emissions and of background radiation, with answers included. Worksheets covering 4.3.1 Background radiation, 4.3.2 Different half-lives of radioactive isotopes, and 4.3.3 Uses of nuclear radiation, matched to the AQA GCSE Physics (8463) specification and suitable for Foundation and Higher tier. Print or work through on screen.