This is a short story I used for my grade 9 class that's quick to read and interesting! The kids loved it and it prompted a lot of interesting class discussion. A short film was also made of this short story which you can probably find online.
The story is only two pages in length which makes it a perfect class activity. I usually read with the students and use it as an opportunity to introduce reading strategies (particularly context clues, asking questions, and making predictions.) We have a brief class discussion depending on time and then I give the questions for homework.
There are three parts to this package: pre-reading activity (anticipation), during reading activity (reading strategies), and after reading activity (questions). I have also included a teacher notes section so that you can see where I stopped and what I discussed with my students.
There is no answer key for the questions, but you will find that the questions are less about quizzing what the students can understand independently and more about reflecting upon their reading experience. My goal at the time was to get them to enjoy the reading experience while practicing their skills as readers. There are some reading analysis questions, but if the student was paying attention and understood what was happening during the class discussion, then they should be able to answer it.
Although I used it for my grade 9 class, I think it's perfectly suitable for grades 7-10.