Agenda
- Count rice by weighing — twenty grains first, then a full beaker
- Skill as you go: Measuring Well — tare, resolution, repeated readings
- What your rice method needs before it works for atoms
- Name it: The Mole — Avogadro’s number, against your rice constant
- Return to the paperclip and finish it, with units and significant figures
Things to do before our next class
- Journal: your rice “mole”, how many grains it holds, and why your number differs from the group beside you.
- Re-read The Mole and bring one question about the worked example.