Here is an introduction worksheet to Radiation and Radioactivity video from Teacher's Pet (video link is embedded at the top of the worksheet). There are thirty-six questions that go along with the video. There is one HOT activity which is a comic strip that asks students to do extra research on one of the three types of radiation they learned about, and make a comic strip explaining that type of radiation. Along with the activity is a rubric to help grade the students.
This worksheet can be used in class, at home, or for review. Great for middle schools students who are being introduced to this topic. Good review for high school students who need to have a quick review.