Here's a 4th grade writing sample based on a hygiene unit I taught:
What is hygiene? Hygiene is keeping your body clean. Remember to clean your bottom and wash your hands. It it important to do this because if you don't you will have an itchy bottom, a rash, and pin worms. And you have to flush the toilet and not just cover it with toilet paper. Remember to wash your hair. If you don't you might get piojos, know as lice. Lice are little bugs that live in your hair. If you don't want them you have to have good hygiene.
I wish I had a scanner 'cause there's a nice little drawing of a head full of lice to go with it.