Microorganisms and how they spread

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• 11 sections of explanation, worked examples and diagrams
• 2 practice tasks with hints and worked answers
• A quiz that marks itself as you go
• Your progress kept across every subject you take

Other lessons in this sub-strand

1. Microorganisms and how they spread
2. Preventing infection, and the microorganisms we need
3. Bacteria: cells that divide in two
4. Fungi: threads, yeasts and spores
5. Viruses: not a cell
6. Observing microorganisms safely
7. Spread by air: droplets and coughing
8. Spread by water and food
9. Vectors, wounds and body fluids
10. Infections that matter in Kenya
11. Vaccination: a safe first meeting
12. Hygiene and community control
13. Useful microorganisms in food and medicine
14. Useful microorganisms in soil and waste