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Micro-Organisms - PowerPoint PPT Presentation


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Micro-Organisms. Microbes are Tiny Living Things. Microbes or micro-organisms can only be seen through a microscope. There are millions of microbes in the soil, air, water and even the human body. Some microbes are USEFUL and some are DANGEROUS . Bacteria and viruses are microbes .

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microbes are tiny living things
Microbes are Tiny Living Things
  • Microbes or micro-organisms can only be seen through a microscope.
  • There are millions of microbes in the soil, air, water and even the human body.
  • Some microbes are USEFUL and some are DANGEROUS.
  • Bacteria and viruses are microbes.
helpful microbes do important jobs
Helpful Microbes do Important Jobs
  • Bacteria which help make vinegar, cheese and yoghurt
  • Bacteria rot down dead organisms and put nutrients in the soil for plants to help them grow
  • Yeast is a microbe: it’s used to make beer and bread
harmful microbes can cause disease
Harmful microbes can cause Disease
  • They cause disease and illness: flu, colds, measles, chicken pox, AIDS,tetanus, etc.
  • Microbes cause tooth decay.
four ways of spreading disease
Four ways of Spreading Disease
  • From coughs and sneezes
  • From touching infected people or objects
  • From insect bites
  • From infected food
in the kitchen be sensible with food
In the Kitchen – be Sensible with Food
  • Keep food covered
  • Store food in a fridge
  • Heat food properly when cooking
  • Store raw meat away from cooked meat
  • Preserve foods properly – take away water and air
at home be sensible with personal hygiene
At home – be Sensible with Personal Hygiene
  • Wash your hands after going to the toilet
  • Don’t sneeze or cough over people
at the doctors medicines are used to fight microbes
At the Doctors – Medicines are used to fight Microbes
  • Medicines called vaccines and antibiotics are taken as pills or injected – to fight microbes that cause illness