I thought that the CSI unit was really fun. My favorite part was the station that we got to burn cotton and wool. I liked that station because I had never heard about testing string to help determine a murderer. The station I found the most confusing was the chemist station. My favorite part of the first day of CSI was looking at the six differences pictures. Overall I thought it was a really fun and well put together unit. I was also very surprised with who was convicted for the murdered.