Nature Example
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Micro-organisms

Tiny living things, also known as microbes, that are too small to be seen without a microscope.

Examples: Yeast, bacteria, and mould.

💡 Fun Facts

  • Yeast: The bubbles in bread are created by billions of tiny yeast organisms releasing carbon dioxide gas as they feed on sugar.
  • Bacteria: There are more bacterial cells in and on your body than there are human cells, and most are essential for your health.
  • Mould: The life-saving antibiotic, penicillin, was discovered by accident when a scientist noticed that mould had killed bacteria in a petri dish.
  • Some bacteria can reproduce extremely quickly. In ideal conditions, a single bacterium like E. coli can divide into two every 20 minutes.
  • Micro-organisms in the ocean, called phytoplankton, produce more than half of the oxygen in the Earth's atmosphere through photosynthesis.