1. CSI Evidence Evaluation CSI Agents: Emma Keller, Ashley Justus, Ben Juhn, Ryan Esposito

2. Physical Properties • An observable or measurable characteristics • EX: color, size, state of matter, odor , temperature, volume, density, texture, magnetism etc..

3. Chemical Properties • The ability to react with another substance • EX: flammability, oxidation, and combustibility • Reactivity with water, iodine and vinegar

4. Metal Evidence Evaluation Sample 2 Sample 1

5. Metal Evidence Evaluation Sample 1 Sample 2 We identified sample 2 to be steel • Solid • Magnetic • Dark silver/grey • 3.2 g/mL-density • doesn’t corrode in acid We identified sample 1 to be aluminum • Solid • Not magnetic • Light silver • 1.6 g/mL-density • Corrodes in acids

6. Liquid Evidence Evaluation We identified the liquid to be rubbing alcohol. • It smelled like rubbing alcohol • flammable Mystery Liquid

7. Powder Evidence Evaluation • We identified the mystery powder as Baking Powder • Mystery Powder bubbled when in contact with water • Bubbled when in contact with vinegar • Iodine turned black with contact to powder Water Vinegar Iodine

8. Summary of Findings • The mystery liquid was identifies as rubbing alcohol. • The mystery powder was identified as baking powder. • We identified the metals as steel and aluminum. Steel Aluminum

9. Thank you