Data

MS

Amount of CO2 at start: 400ppm 4/8/11 JC Amount of CO2 second trial: 430ppm 4/13/11 JC Amount of CO2 after killing bacteria: 400ppm 4/15 Amount of CO2 second trial after killing bacteria: 415 ppm 4/25 Bacteria reading: took Reading 4/8/11 DS

Hypothesis- if the bacteria is exposed to the UV light for 5 minutes killing the bacteria then the CO2 level will decrease.- MS Conclusion- With less bacteria the CO2 level decreased.- MS

MS

Amount of CO2 at the start: 330 ppm 4/8/11 JC Amount of CO2 second trial: 420 ppm 4/13/11 JC Amount of CO2 after cockroach is taken out: 430ppm 4/15/11 JC Amount of CO2 second trial after cockroach taken out 456ppm 4/15

Hypothesis- if we take out the cockroach then the amount of CO2 will decrease.-MS Conclusion- When we took at the cockroach the amount of CO2 increased. This shows that the bacteria were greater contributors to the amount of CO2.- MS

MS Bacteria reading took: 4/8/11 stopped at 4/13/11