ABOUT THIS PRODUCT:
This is a two part test to determine whether a surface has been exposed to a discharged firearm. A rapid color change takes place to verify the presence of nitrates and lead. Kit contains instructions and enough materials for 30 tests.
Aligned to the Next Generation Science Standards (NGSS)®
Disciplinary Core Ideas: PS1.A; PS1.B
Performance Expectations: MS-PS1-2
Cross Cutting Concepts: Patterns
Engineering Practices: Analyzing and Interpreting Data 
