This series features 13 science and social studies-based informational text, reading comprehension exercises. Each comes with a reading passage and 10 multiple choice or multi-select questions. These are perfect for standardized test practice. A full answer key for all 13 question sets is provided. These reading comprehension exercises are downloaded hundreds of thousands of times per month on the mrnussbaum.com website. Here, you get all 13 in a single .pdf. These can also be used for students in grades 5 and 6.