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Dromore Central Primary School, Dromore

Germ Transfer Investigation in Mrs Callaghan’s Class

13th Nov 2025
We carried out an investigation into how germs are transferred from one person to the next in school today.
We put Vaseline onto the hands of three children, who then pressed their hand into a tray of red glitter ‘germs’.
Elsie then washed her hands in warm water and soap.
Jenson washed his hands using only cold water and no soap.
Lottie didn’t wash her hands at all.
Following this, we got each team leader to ‘High 5’ their friends in the line to see how the germs spread.
We concluded that the fewest germs were spread by the person who had washed their hands thoroughly using warm water and soap.
More germs were transferred by the person who had washed their hands less thoroughly using only cold water.
However, most germs were transferred by the person who had not washed their hands at all.