Marvellous Micro-organisms

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Across
  1. 2. the study of living things
  2. 4. a device that uses lenses to see tiny objects
  3. 5. a colony of bacteria
  4. 9. scientist who made simple microscopes
  5. 11. the food for yeast
Down
  1. 1. a type of fungus often resembling a furry coating
  2. 2. a single-celled microorganism usually associated with disease
  3. 3. a type of fungus used in baking
  4. 4. not visible to the naked eye
  5. 6. the gas produced by yeast as it is growing
  6. 7. an antibiotic discovered by Dr Fleming
  7. 8. an organism without leaves, stems, or roots
  8. 10. a microscopic animal