Memorize common recycling codes & density tests:
A common mistake is leaving formulas off the sheet because they are "basic." Under stress, you will forget simple algebra.
Physical characteristics under a microscope or during a burn test are your best clues. Plastics (Resin Codes) Sinks in water. HDPE (2): Floats in water. PVC (3): Sinks in water; green flame in copper wire test. LDPE (4): Floats in water. PP (5): Floats in water. PS (6): Sinks in water; dissolves in acetone. forensics cheat sheet scioly
This is the written portion of the test.
Most students treat their cheat sheet like a word document. They write paragraphs. The Solution: Treat it like an infographic. Memorize common recycling codes & density tests: A
Form first; radiate out from the point of impact (opposite side).
A winning Forensics cheat sheet is lab-focused , not theory-focused. It should guide you through the "identify this unknown" process step-by-step. If you have to read a paragraph of text to figure out if a powder is Cornstarch or Baking Soda, your cheat sheet needs a redesign. Prioritize Flowcharts and Tables. HDPE (2): Floats in water
Since you didn't specify a specific link or a specific document, I am reviewing the .
These are the sections you will use in 90% of the labs. If your cheat sheet lacks these, it will fail you.