Can broken glass crack the case?

• NGSS Physical Science DCIs PS1, PS3
• Pre and post-laboratory assessments
• Links to real world concepts
• Estimated class/lab time required: 160 minutes over 2-4 days

This lab demonstrates how intrinsic properties of glass can be used to distinguish common types of glass. Students will analyse radial and concentric patterns in the glass and how each type gives information on the direction of the force that impacted the glass. Students will practice their inference skills as they work to reconstruct a crime through theorising the sequence of events resulting in multiple trauma patterns on glass. While doing this activity students’ utilize NGSS Physical Science Disciplinary Core Ideas PS1 (Matter and its Interactions) and PS3 (Energy)

This kit has been aligned with all published National Standards. Pre- and Post-laboratory assessments and vocabulary words all target specific Science and Engineering Practices and common core standards. The teacher guide also contains specific “Did You Know” concepts that link the real world with the scientific standards explored.