A CRIME HAS BEEN COMMITTED.pdf

SUGGESTED GRADE LEVELS: 8-12 ILLINOIS STATE LEARNING GOALS SCIENCE 11.A, 13.A MATH 6.A, 7.A, 10.A, 10.B LANGUAGE ARTS 1.C, 3.A, 3.B, 3.C, 4.A OBJECTIVES ★ Students will demonstrate proper lab techniques to analyze soil and fi ber samples, perform chromatography, calculate density of glass samples and analyze unknown powders. ★ Students will construct a table and organize data. ★ Students will draw conclusions based on data and evidence collected. PREPARE YOURSELF 1. Decide in advance of the activity which ink, soil sample, fi ber, glass and powder you will use for that found at the crime scene and on the suspects. You may set up the crime to have only one person guilty, 2 guilty or none of the given suspects guilty. 2. (optional) Write evidence collected on the board or poster paper. MATERIALS Refer to Glass Chip Density, Ink Chromatography, What Could It Be?, and Forensics and Dirt lessons for complete materials list. PACE YOURSELF: 250 MINUTES 5-6 CLASS PERIODS FOR THIS LESSON A CRIME HAS BEEN COMMITTED QUICK PEEK In this lesson, students will demonstrate all of the techniques they have learned during the lessons Ink Chromatography, What Could It Be? Glass Chip Density, Forensics, Dirt and Fibers and Forensics. A CRIME HAS BEEN COMMITTED 1 WHAT YOU NEED TO KNOW... Th is lesson is a culmination of the previous fi ve lessons: Glass Chip Density, Fibers and Forensics, Ink Chromatography, What Could It Be?, and Forensics and Dirt. Students must think back to the procedures and techniques that they used in each lab to complete this project. For background information, refer back to the corresponding lesson. WARM UP! Read students the following: INCIDENT REPORT Friday night at approximately 2200 hours, police were called to the scene of what they believe to be an attempted murder. Th e victim had been hit by a car and was laying on the ground unconscious, though had a pulse and was breathing. Th e victim was rushed to the hospital an