A complete KS3 Year 7 Biology unit on inheritance and evolution: Variation; Chromosomes, Genes and DNA; Inheriting Features; Natural Selection; and Extinction and Biodiversity. Each lesson includes a 6-side student pack, a 4-side teacher answer key, a 4-side resource pack (cut-out cards, data sheet, practical sheet and teacher prep notes) and a two-part PowerPoint. Also includes a 50-mark end-of-unit test with mark scheme and a unit overview. Printable PDFs and PowerPoints, ready to teach with minimal prep. Practical notes should be checked against CLEAPSS and your school risk assessment.