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Micro-organisms: useful microbes

Teaching Time: 50min

Target Group: Key Stage 2

Curriculum Links:

Science: Working scientifically; Living things and their habitats

English: Reading and Comprehension

PSHE: Core Theme 1 - Health and Wellbeing

Design and technology: Cooking and nutrition

Mathematics: Comparing measurements

Learning Objectives:

All students will:

  • understand that some microbes can keep us healthy.

Most students will:

  • understand that some microbes can be put to good use.

Some students will:

  • know that microbes grow at different rates depending on their environments.

Test your students knowledge

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This section highlights to students that not all microbes are harmful by examining beneficial microbes.

Activities include:

  • “Yeast races”, where students observe how yeast makes dough rise through the process of fermentation.
  • “Yummy yogurt”, where students observe changes to milk after yogurt culture is incubated.

The video below provides a demonstration of how to run the “Yeast races” experiment.

To reduce the amount of photocopying required, the Student Handouts for this section are also available in an MS PowerPoint presentation for whiteboard use.


DISCLAIMER: e-Bug was developed for use in schools pre-COVID-19 and so some activities may require modification based on your school’s distancing guidelines.

Please use your judgement and tell us how you have modified the activities, or if you would like to discuss some ideas, contact e-Bug@phe.gov.uk

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