Forensics Cheat Sheet Scioly Guide

Distinct crystalline shape; pH neutral. Liquid Reagents Iodine: Tests for starch (turns black). Vinegar (HCl/Acetic Acid): Tests for carbonates (fizzing).

Protect your sheet from chemical spills and water. forensics cheat sheet scioly

Tests for reducing sugars (requires heat). Distilled Water: Tests for solubility. pH Paper: Essential for narrowing down ionic compounds. Polymers and Fibers Distinct crystalline shape; pH neutral

Memorize common recycling codes & density tests: Protect your sheet from chemical spills and water

Since burn tests are sometimes restricted, include both density and burn characteristics. Burn Behavior Density/Solubility Burns fast, yellow flame Burning paper Fine grey ash Sinks in water Wool Sizzles, self-extinguishes Burning hair Brittle black bead Sinks; shrivels in heat Nylon Melts and drips Celery/plastic Hard grey bead PETE (1) Slow burn, pungent Sinks in water HDPE (2) Fast burn, drips Candle wax Floats in water PS (6) Fast, black soot Sweet/Gasoline Sinks slowly 3. Physical Evidence Analysis Forensics - Wiki - Scioly.org

Create a "Logic Tree" for powders to save time during the lab.