Coronavirus (COVID-19): Read our page on coronavirus for health information and advice.


England Flag England
Wales Flag Wales (Cymraeg)
Wales Flag Wales (English)
Wales Flag Ireland (English)
Wales Flag Ireland (Irish)
France Flag France
Greece Flag Greece
Kosovo Flag Kosovo
Basque Country Flag Basque Country
Denmark Flag Denmark
Germany Flag Germany
Hungary Flag Hungary
Italy Flag Italy
Spain Flag Portugal
Spain Flag Spain
Ukraine Flag Ukraine
Saudi Arabia Flag Saudi Arabia
Sweden Flag Sweden

KS3 Harmful Microbes

In this section students are introduced to a variety of health issues caused by harmful microbes. This lesson touches on the different ways in which bacteria, viruses and fungi can be pathogenic to humans, and aligns well with RSHE guidelines relating to Health & Prevention.

Last Updated: 13 August 2021
English Bacteria, Colonise, Flora, Fungi, Harmful, Infected, Infectious, Micro-organism, Microbes, Toxin
  • Overview

What will you learn:

Microbial infections are found across the world. "Harmful Microbes" introduces students to the variety of infectious diseases across the globe caused by harmful microbes. Students learn that it is not always easy to identify and treat a disease.

Activities include:

  • Students are required to act as scientists and group a range of diseases under different headings to address the range of problems which may arise.
  • Students research either side of the following conundrum 'are we too clean or not clean enough?' and have a classroom debate on the issue.

Learning Objectives:

  • Understand that some microbes can make us ill and cause infection.
  • Understand that harmful microbes can be spread from person to person.
  • Understand that different infections cause different symptoms.
  • Understand how global travel has influenced the spread of disease.


  • A Print out of Student Handout 1, 2 and 3 per group
  • A Print out of Student Worksheet 1 per group

Curriculum Links:

  • Science: Working Scientifically, Experimental skills and investigations, Analysis and evaluation, Nutrition and digestion, Biology
  • English: Spoken English
  • RSHE: Health & Prevention
Download Full Pack Word Word PDF PDF
e-Bug Operated By Public Health England Logo

e-Bug is a free educational resource, operated by Public Health England, which contributes to the government’s ongoing action plan to tackle antimicrobial resistance. e-Bug resources make learning about microbes, antibiotics and the spread and treatment of infection, engaging and accessible.


Search e-Bug

Contact Us

© 2020 e-Bug Copyright