Microbiology Lab Exercise Help

RQ:  Which room in most people’s house or apartment has the highest level of particle pollution?

Ho:  Null Ho:

Materials:  4 – 3×5 cards, 4cmx4cm squares of graph paper,  Vaseline, Scotch tape, Marker,  Magnifying glass.

Procedures:  1.  Create your 3×5 cards by cutting graph paper into 4cm x 4cm  squares.  Glue this square on your 3×5 card.  Add a few drops of oil to the graph paper and spread evenly.  Label your cards well.

2.  Choose 4 different locations (different rooms inside eg bedroom, living room etc.) to post your cards for 1 week.  Make sure you know the size of 1 box on your graph paper.

3.  Collect after a week and count the particles in at least 5 grids.  Calculate the particulate density. Combine class data and graph on the Google sheet.

4.  Graph the mean data by location (bedroom, living room etc.)

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