Clean Hands, Mouldy Bread
We did an experiment about germs in class! We took three pieces of bread: one control bread than no one touched, a second bread that one person (Sahara) touched all ver after washing her hands really well, and a third piece of bread that we all touched with no soap and we also wiped it on Ms. Scott's dirty phone and laptop. The bread was placed in bags and we waited to see how the germs (bacteria) would grow. These were our results! Yuk! The bread touched by dirty hands was COVERED in mould because of the bacteria!!! We know now how important it is to wash our hands!
Kia Ora Room 4,
ReplyDeleteThe year 6 students in LS1 were amazed and a little bit disgusted looking at your experiment about bacteria. Do you think other surfaces in your room or the school would transfer as much bacteria as your hands and why?
Nga Mihi
LS1 Year 6 Students.
Kia Ora LS1!
ReplyDeleteWe think you asked a great question! We think that any surface can have bacteria on it if we don't clean it. We think this because the bread with all the mould was rubbed on Ms. Scott's laptop and phone and the mould grew quicker after that. What surface at school do you think is covered with the most bacteria? Is anyone in your class going to try the bread experiment at home?
Best Wishes,
Room 4
Kia Ora Room 4,
ReplyDeleteThank you for your feedback, we think your response is great. We think that the bin handles contain the most bacteria in the school, because no one cleans them and pupils all over the school constantly touch them which causes the bacteria on the pupils hand to transfer onto the bin handle. We think that no one will try this experiment because we have already seen the results and concluded that this experiment shows the amount of bacteria on different surfaces. Do you think that sanitising our hands is enough to get the same results as the controlled result and why?
Kia pai to ra
LS1 - Year 6’s