These 2" x 8.5" lenticular bookmarks will help you explain why we are naturally radioactive. The colorful front carries the message that we live in a radioactive world. The back is
packed with radiation facts including that humans contain Potassium 40 and Carbon 14.
Lenticular bookmarks are made of a special plastic. The printed image shows depth and motion as your viewing angle changes.
Purchase your own supply and distribute them to friends, students, teachers and others. Or, place them in libraries, distribute them at your next meeting/exhibit, and more.
Appropriate for 5th grade levels through adults