Students become crime-scene investigators through exciting lessons and activities. There are activities in earth, life, physical science as well as science inquiry and technology. Like real-life forensic scientists, students observe carefully, organize and record data, think critically, and conduct simple tests to solve crimes like theft, dog-napping, vandalism, and water pollution. Background information with step-by-step procedures for the teacher and reproducible student worksheets are included. Grades 6-12.