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2.3 Avoiding microbes

2.3 Avoiding microbes. Slide 1. 2.3 How clean is it?. Where might you find most microbes?. Slide 2. 2.3 Avoiding microbes. Picking up microbes. Sneezes are an obvious source of microbes but where else can you pick them up?. Slide 3. 2.3 Avoiding microbes. Removing microbes.

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2.3 Avoiding microbes

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  1. 2.3 Avoiding microbes Slide 1

  2. 2.3 How clean is it? Where might you find most microbes? Slide 2

  3. 2.3 Avoiding microbes Picking up microbes Sneezes are an obvious source of microbes but where else can you pick them up? Slide 3

  4. 2.3 Avoiding microbes Removing microbes Whenever new homes are built, pipes like this are used to connect them to sewers. Sewers take human wastes away so diseases have less chance to spread. Slide 4

  5. 2.3 Avoiding microbes Growing your own Microbes reproduce fast when they have a good source of food… …and what’s food for us is food for them too. Slide 5

  6. 2.3 Avoiding microbes Use by dates Many foods are stamped with dates to show when they should be eaten by. Often that’s just before the microbes in them have made the food smell rotten. Slide 6

  7. 2.3 Avoiding microbes Out of date? Find out which sorts of food have the closest use-by dates. Slide 7

  8. 2.3 Staying safe It’s hard to avoid colds, or know who passed you the virus. The microbes that cause STI’s (sexually transmitted infections) only survive for a few seconds outside the body… …so it’s easier to protect yourself. Slide 8

  9. 2.3 Staying safe STI transmission During sex, body fluids mix. Condoms stop body fluids mixing during sex. Slide 9

  10. 2.3 Match up Match the hazardous microbe to a method that will stop it spreading. • Chlamydia • Salmonella • Cold virus • E. coli from faeces Good sewers Wash hands often Use a condom Cook food well, don’t keep it warm Show answers Slide 10

  11. 2.3 Match up Match the hazardous microbe to a method that will stop it spreading. • Chlamydia • Salmonella • Cold virus • E. coli from faeces Good sewers Wash hands often Use a condom Cook food well, don’t keep it warm Slide 11

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  13. Questions to answer Slide 13

  14. Questions to answer Slide 14

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  23. Q10. List four sources of microbes. Slide 23

  24. Sewers take human wastes away so diseases have less chance to spread. Q11. Why is it good to keep sewers in a good state of repair? Slide 24

  25. Many foods are stamped with dates to show when they should be eaten by. Often that’s just before the microbes in them have made the food smell rotten. Q12. Use by dates on food are only a rough guide. Explain why. Slide 25

  26. 2.3 Match up Q13. Match the hazardous microbe to a method that will stop it spreading. • Chlamydia • Salmonella • Cold virus • E. coli from faeces Good sewers Wash hands often Use a condom Cook food well, don’t keep it warm Show answers Slide 26

  27. Q14. Describe four ways of cutting the number of infections you get Slide 27

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