On Friday we wrapped up our bacteria investigation. For five days we allowed our bacteria samples to grow on our agar petri dishes that we created a week ago. Below are some pictures of the final results.
Let's start off with our lunch room, front office, and computer lab.
1. Water fountain
2. Key board from sixth grade computer lab
3. Phone from the office (student use)
4. Lunch room key pad (student use)
Next, revisit to the office and lunch room with stops in the sixth grade lab and restroom.
1. Front office phone (student use)
2. Computer mouse from sixth grade computer lab
3. Lunch room key pad (student use)
4. Toilet seat (girls restroom)
Lastly, school library, toilet seat, and our own door handle.
1. Toilet seat (boys restroom)
2. My classroom door handle
3. Library book marks
4. Library counter top
Overall we found that we live in a pretty disgusting world. There is no escaping germs and bacteria no matter where we go. Some students found bacteria in unlikely places, such as the library and bookmarks. There was also sampled locations that we expected lots of bacteria, but not to the extent we found, like our classroom pet the roaches. As we move forward we will be switching our focus from diversity of life to properties of matter as we come down the final stretch of the school year.