This Printable Worksheet is designed for use as supplementary material that supports a total reading program. It can also be revised to be used as an independent study for the student. Students will find it necessary to read the book carefully and thoroughly for comprehension in order to score well. Discussion questions (Read, Think, Discuss and Grow) section is a series of open-ended questions which requires students’ higher-level thinking skills. The unit contains: vocabulary activities, and comprehension questions, vocabulary quiz (cloze passage), Suggested curriculum connection activities (reading :Radiation ), Discussion& Writing Topics and Answer Keys.