Is 7th Grade Science Really This Fun?

Guess who gets to sub again today!?! Yep, you guessed it. I have U.S. History, Health, Science, and Geography today. Man, these DoD teachers really have to know their stuff to be able to teach all of this. This is just subbing for one teacher. Wow! I would be confused daily having to switch between all the subjects. Let's hope I come out alive at the end of the day! :)