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      Preventing the spread of disease

      Lesson details

      Learning outcome

      I can explain how diseases are passed on and how to prevent their spread.

      Key learning points

      1. Germs are tiny living things that live on or in our bodies and can cause disease.
      2. Some diseases are spread by coughs and sneezes.
      3. Some diseases enter our body through our mouths and eyes.
      4. Wearing a face mask can reduce the spread of airborne disease.
      5. Vaccines can prevent some diseases and serious illnesses.

      Keywords

      • Germs - tiny living things that can make us ill

      • Disease - when germs get inside your body and make you feel sick

      • Airborne - when something travels through the air

      • Vaccine - a medicine that can prevent some diseases and serious illnesses

      Common misconception

      If we cannot see germs, we are clean.

      Germs are so small that we cannot see them. Only soap or hand sanitiser can kill germs.

      Teacher tip

      Remind pupils of the correct handwashing technique, for example, washing hands for at least 20 seconds and making sure to wash in between fingers.

      Content guidance

      Depiction or discussion of sensitive content

      Depiction or discussion of sensitive content

      Supervision

      Adult supervision recommended

      Licence

      This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      Match the words to their correct definition.

      Correct Answer:germs,tiny living things that can make us ill

      tiny living things that can make us ill

      Correct Answer:dangerous,something that can cause us harm

      something that can cause us harm

      Correct Answer:weight,how heavy something is

      how heavy something is

      Q2.
      We can clean our body and kill germs by using...

      Correct Answer: soap, soapy water, warm water and soap, warm soapy water, hand sanitiser

      Q3.
      Which of these statements are true?

      Correct answer: Losing weight quickly can be a sign of illness.
      Diseases cannot be spread by germs on our hands.
      Correct answer: We should tell a trusted adult if our body changes suddenly.
      Everyone who is thin is healthy.

      Q4.
      How often should we brush our teeth?

      once a day
      Correct answer: twice a day
      three times a day
      every time we eat

      Q5.
      Why is it important to brush our teeth regularly?

      so we can eat as many sweets as we like
      Correct answer: to help remove plaque
      Correct answer: to help prevent cavities
      so we can have bad smelling breath

      Q6.
      Before putting a plaster on a cut or graze, it should be so that germs are removed from the area.

      Correct Answer: cleaned, wiped

      6 Questions

      Q1.
      Match the words to the correct definition.

      Correct Answer:disease,when germs get inside your body and make you feel sick

      when germs get inside your body and make you feel sick

      Correct Answer:airborne,when something travels through the air

      when something travels through the air

      Correct Answer:vaccine,a medicine that can prevent some diseases and serious illnesses

      a medicine that can prevent some diseases and serious illnesses

      Q2.
      are tiny living things that live on or in our bodies and can cause disease.

      Correct Answer: germs

      Q3.
      Why should we cover our mouth and nose if we sneeze or cough?

      Correct answer: Some diseases are spread by coughs and sneezes.
      It will cause someone else to sneeze after us.
      It could cause someone to get upset.
      Correct answer: Some diseases enter our body through our mouths and eyes.

      Q4.
      Which statements are true?

      If we cannot see germs, we are clean.
      Correct answer: Germs are so small that we cannot see them unless we use a microscope.
      Water can kill germs.
      Correct answer: Only soap or hand sanitiser can kill germs.

      Q5.
      Wearing a can reduce the spread of airborne disease.

      Correct Answer: face mask, facemask, mask

      Q6.
      Why are vaccines important?

      Correct answer: They can prevent us from getting ill.
      They makes us less healthy.
      Correct answer: They can prevent others from getting ill.
      They can make us gain weight.

      To help you plan your 4 RSHE (PSHE) lesson on: Preventing the spread of disease, download all teaching resources for free and adapt to suit your pupils' needs...