Hello everyone,
On wednesday we did an experiment. My class got to learn how bacteria grows and even more!
First, we needed to decide what surfaces to sample. And the results were: under the table, clean hands, dirty hands and the door knob. Then we used our cotton swabs to collect the samples by rubbing them on the surface for ten seconds. Then, the people with dirty hands went to go wash their hands to remove the other germs.
After that, we rubbed our cotton swabs with zig-zag patterns on the agar with the samples. When it was finished, labels of the sample names were put on the lids, then we sealed it with tape so no one can open it. Then we store it in a warm area to let it grow.
Then in the next few days we can check on them to see how much they’ve grown!!
Hope you enjoyed! Let me know in the comments If I should add anything. 🦖


