Learn about cross contamination of bacteria in schools, food poisoning bacteria and where and how you can get them
Stop the Germs!
Learn about cross contamination of bacteria in schools, food poisoning bacteria and where and how you can get them
Activity details: Learn about cross contamination and how to prevent it
Resource
- HWB 2-15a
- HWB 2-16a
- HWB 2-33a
- we're learning how cross contamination can happen
- we're learning how quickly this can happen
- we're learning how important it is to wash our hands
- we're are learning about the impact that cross contamination can have
- I can name 3 places where bugs comes from
- I can explain why I need to wash my hands
- I can explain how to prevent the spread of bugs
Resources
- chalk (or glitter or paint)
- worksheet 1 - task cards to perform with chalk on hands
- worksheet 2 - bugs and where you can pick them up
- worksheet 3 - drawing a line from bugs to foods where you can pick them up
- camera/iPad for filming
- school floor plan
Setting up
- print the worksheets
- draw or print a school floor plan
Activities
Warm up:
- children’s hands to be covered in chalk (different colours representing different bacteria)
- without revealing the topic ask children to perform a number of set tasks on cards on sheet 1
Discuss results of chalk experiment:
- introduction to bacteria
- names and types and where they are found
- results of cross contamination and impact on health
School floor plan:
- show a range of typical places in a school
- children need to guess which are likely to have the most / least amount of contamination
- discuss results
Develop characters for different bacteria using the sheet 2 worksheet:
- e.g. Sally Salmonella
- use characters to create posters or play or iMovie or advertisement or song or news report warning of risks of cross contamination
- fill in sheet 3 – draw a line from the bug to the correct icons to show where you can get the illness from
Assessment opportunities
DO – pupils fill in sheet 3 and show an understanding of bugs and which foods you can pick them up from
DO – Self/peer assessment
Photos of drama
Consider CfE Benchmarks, for example:
- identifies ways to reduce the risk of food poisoning, for example, reheating food until piping hot, safe food storage, different coloured chopping boards
Differentiation
Support:
- children may have sensory issues and not wish to have chalk on hands:
- use paper cut outs of hand prints to stick to touch points
- provide gloves.
- use simple information cards for bacteria characters
Challenge:
- co-operative learning:
- research each bacterium in expert groups
- present findings to the class
- include the consequences of cross contamination
- research global issues, such as lack of water and sanitation in parts of the world and the risks of cross contamination
- create bacteria 'Top Trumps'